Using the given ratio, we will see that we can define the proportions to find that:
Sandra gets 12 marshmallows.
Peter gets 18 marshmallows.
How many marshmallow eggs will get each one?We know that Sandra and Peter share a packet of 30 marshmallow eggs in the ratio of 2:3.
We can find the fractions for each person by doing the following steps:
So if we add the two values in the ratio we get 2 + 3 = 5
The ratio is:
Sandra:Peter = 2:3
Then we can write the fractions as:
The fraction of the total number of eggs that Sandra gets is 2/5
The fraction of the total number of eggs that Peter gets is 3/5
Now remember that the total number of marshmallow eggs is 30, then the number that Sandra gets is:
S = (2/5)*30 = 12
And the number that Peter gets is:
S = (3/5)*30 = 18
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The length of a rectangle is 3 more than twice the width. Which of the following represents the length of the rectangle if the perimeter is 42 inches? 2(x) +2(2x+3)=42
Answer:
Step-by-step explanation: if the width is x then the length is 2x+3
The perimeter is 2x+2(2x+3)=42
then 6x+6=42
6x=36
x=6
Then the length is 2*6+3=15
What is the remainder when x2 + 15x + 9 is divided by x + 5 ?0 -41O 49O 42O 59
When a polynomial is dived by x - a, to find the remainder, we can plug is x = a into the equation and find the remainder.
When it is divided by x + a, the remainder is found by plugging in x = -a.
Now, the polynomial here is:
[tex]x^2+15x+9[/tex]It is divided by x + 5, so we need to plug in x = -5 to get the remainder, which is:
[tex]\begin{gathered} x^2+15x+9 \\ (-5)^2+15(-5)_{}+9 \\ =-41 \end{gathered}[/tex]The remainder is - 41, 1st answer choice.
Find the 54th term of the following arithmetic sequence.15, 22, 29, 36,...
Two and six-tenths times a number, x, plus 5 is y.
Answer:
2,6x +5 = y
Step-by-step explanation:
Don’t know if you wanted the equation, but this is how it’s written
Solve each equation by graphing. Verify youranswer algebraically.
12. 5-8x=16- 8x
21. 12x +132 = 12x- 100
Answer:
12. 0 = 11
No Solution
21. 0 = -132
No Solution
Step-by-step explanation:
12.
5 - 8x = 16 - 8x
-8x + 5 = -8x + 16
- 5 = - 5
-8x = -8x + 11
-8x = -8x
0 = 11
No Solution
21.
12x + 32 = 12x - 100
- 32 - 32
12x = 12x - 132
-12x -12x
0 = -132
No Solution
55 POINTS!!!
1. Identify the set of ordered pairs that represents y as a function of x.
Responses
{(−1, 0), (−1, 1), (−2, 2), (0, 3)}
{(−1, 1), (−2, 0), (−3, 4), (−3, 3)}
{(0, 0), (1, 1), (2, 2), (3, 3)}
{(0, 0), (1, 0), (2, 4), (2, 3)}
2. Which table represents y as a function of x?
Responses
x y
0 1
0 2
1 3
2 3
x y
1 0
2 0
3 1
3 2
x y
−1 −1
0 −1
2 0
3 2
x y
−1 −1
−1 0
0 2
2 3
Answer:
1) B, 2) C
===========
As per definition, functions have only one y-value per x-value.
Let's test it with given sets and tables.
Part 1A) {(−1, 0), (−1, 1), (−2, 2), (0, 3)} - Not a function x = - 1 repeatedB) {(−1, 1), (−2, 0), (−3, 4), (−3, 3)} - Not a function x = - 3 repeatedC) {(0, 0), (1, 1), (2, 2), (3, 3)} - FunctionD) {(0, 0), (1, 0), (2, 4), (2, 3)} - Not a function x = 2 repeatedPart 2A)
x y
0 1
0 2
1 3
2 3
Not a function, x = 0 is repeatedB)
x y
1 0
2 0
3 1
3 2
Not a function, x = 3 is repeatedC)
x y
−1 −1
0 −1
2 0
3 2
FunctionD)
x y
−1 −1
−1 0
0 2
2 3
Not a function, x = - 1 repeated1) The set of ordered pairs that represents y as a function of x is;
B; {(−1, 1), (−2, 0), (−3, 4), (−3, 3)}
2) The table that represents y as a function of x is; Table 3
How to Interpret Ordered Pairs?An ordered pair is defined as a composition of the x coordinate called the abscissa and the y coordinate called the ordinate having two values written in a fixed order within parentheses.
1) The first function given as {(−1, 0), (−1, 1), (−2, 2), (0, 3)} ; This cannot be regarded as a function because the input x = - 1 is repeated with different output values.
The second function {(−1, 1), (−2, 0), (−3, 4), (−3, 3)} ; This cannot be regraded as a function because the input x = -3 is repeated with different output values.
The third function {(0, 0), (1, 1), (2, 2), (3, 3)}; This is a function because each input has unique output values.
The fourth function {(0, 0), (1, 0), (2, 4), (2, 3)} ; This cannot be regraded as a function because the input x = 2 is repeated with different output values.
2) Table 1 cannot be regarded as a function because the input x = 0 is repeated with different output values.
Table 2 cannot be regarded as a function because the input x = 3 is repeated with different output values.
Table 3 is a Function because each input has unique output values.
Table 4 cannot be regarded as a function because the input x = -1 is repeated with different output values.
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Please fill the gaps in!!
Answer:
[tex]2 {d}^{2} + 5d - 7 [/tex]
[tex](2d + 7)(d - 1)[/tex]
3. Last year in January Nugget Park employed 520 workers. At the end of the
year 195 employees were made redundant. What fraction of the workforce
kept their jobs?
[tex]\frac{325}{520}[/tex] fraction of the workforce kept their jobs
What is the Percentage?
A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.
What is Percentage change?
The percentage increase is calculated by subtracting the original number from the new number, dividing that result by the original number, and multiplying that result by 100.
where growth in number equals new number minus initial number.
Similar to how a percentage increase is calculated, a percentage reduction is calculated by subtracting a new number from the original number, dividing that new number by the original number, and multiplying that result by 100.
decreasing number where original number - new number
In other words, there is a percentage decline if the response is negative.
Here, It is given:
In January 520 workers were employed;
In the end, 195 employees were redundant;
So, The fraction of the workforce who kept their job:-
The fraction of the workforce who kept their job=[tex]\frac{520-195}{520}[/tex]
The fraction of the workforce who kept their job=[tex]\frac{325}{520}[/tex]
Hence,
The fraction of the workforce who kept their job=[tex]\frac{325}{520}[/tex]
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Wing Ko replaces watch bands. He is paid $24.60 per band How many bands must he replace to eam at least $122.50 per day?
To earn at least $122.50 per day, Wing Ko must replace 5 watch bands
Here, we want to find the number of bands that Wing Ko must replace to earn at least $122.50 per day
Let the number of watch bands be x
Using mathematical relatio to represent this inequality, we have;
[tex]\begin{gathered} 24.\text{ 6 }\times\text{ x }\ge\text{ 122.50} \\ 24.6x\text{ }\ge\text{ 122.50} \\ \\ x\text{ }\ge\text{ }\frac{122.5}{24.6} \\ \\ x\text{ }\ge\text{ 4.97} \\ \\ x\text{ }\ge\text{ 5} \end{gathered}[/tex]Ilya goes to the store with $1.40 in his pocket and $1.85 in his wallet. Which model shows how much money Ilya has all together?
The model is a linear function that shows $3.25 money that Ilya has all together
What is meant by a linear function?The phrase linear function relates to two distinct but related concepts in mathematics:
Some authors use the term "linear function" only for linear mappings that accept values in the scalar field; these are more frequently known as linear forms.
Calculus' "linear functions" qualify as "linear mappings" when (and only when) f(0,..., 0) = 0, or, equivalently, when the aforementioned constant b equals zero.
A linear function in calculus and related fields is one whose graph is a straight line, that is, a polynomial function of degree zero or one. The word affine function is commonly used to distinguish such a linear function from the other idea.
A linear function is also known as a linear map in linear algebra, mathematical analysis, and functional analysis.
Given,
Ilya goes to the store with $1.40 in his pocket and $1.85 in his wallet.
Total money=$1.40+$1.85
=$3.25
The model is a linear function that shows $3.25 money that Ilya has all together.
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Type the correct answer in the box. Rewrite the quadratic function in the form that best reveals the zeros of the function.
Answer:
f(x) = (2x + 3)(2x + 1)
Explanation:
The form that best reveals the zeros of the function is:
f(x) = (x - a)(x - b)
Where a and b are the zeros of the function.
So, we need to apply the distributive property as:
[tex]\begin{gathered} f(x)=2(2x^2+4x)+3 \\ f(x)=2\cdot2x^2+2\cdot4x+3 \\ f(x)=4x^2+8x+3 \end{gathered}[/tex]Then, we can factorize the quadratic function as:
[tex]f(x)=(2x+3)(2x+1)[/tex]So, now we can identify the zeros of the function if we solve the following equation:
[tex]\begin{gathered} f(x)=(2x+3)(2x+1)=0 \\ 2x+3=0\rightarrow x=-\frac{3}{2} \\ or \\ 2x+1=0\rightarrow x=-\frac{1}{2} \end{gathered}[/tex]Therefore, the form that best reveals the zeros in the function is:
f(x) = (2x + 3)(2x + 1)
mDE= ?Use O, A to find mDE , given that BF is a diameter of O. A.
STEP 1: Identify and Set Up
We are required to get the angle subtended by the arc DE.
We first acknowledge that it is part of the angles in a quadrant as this will help us find it.
STEP 2: Execute
First find angle DAE
[tex]\begin{gathered} Angle subtended by DE = 45 degreesCan anyone help with this? Thanks
The surface area of the prism is 1440 mm²
Given,
Triangular prism
Height of the prism = 32 mm
Base of the prism = 24 mm
Length of the prism = 7 mm
We have to find the surface area of the prism;
Surface area, SA = bh + (b₁ + b₂ + b₃) l
Here,
Base, b = 24 mm
Height, h = 32 mm
Length, l = 7 mm
b₁ = 24 mm
b₂ = 32 mm
b₃ = [tex]\sqrt{b_{1} ^{2} + b_{2} ^{2} }[/tex] = [tex]\sqrt{24^{2}+ 32^{2} }[/tex] = [tex]\sqrt{576 + 1024}[/tex] = √1600 = 40 mm
Then,
Surface Area = bh + (b₁ + b₂ + b₃) l
SA = 24 x 32 + (24 + 32 + 40) 7
SA = 768 + 96 x 7
SA = 768 + 672
SA = 1440 mm²
That is,
The surface area of the prism is 1440 mm²
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[If f(x) = x and g(x) = 1/2 f(x) , how does the graph of g compare to the graph of f?]
We can notice that the graph of function g(x) = 1/2 f(x) is below the graph of function f(x) = x in the 1st quadrant but above in the 3rd quadrant, and they both intersect at 0.
What are graphs?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way. The relationships between two or more items are frequently represented by the points on a graph.Charts and graphs come in a variety of styles. Line graphs, bar graphs and histograms, pie charts, and Cartesian graphs are likely the four most popular types. They serve quite diverse purposes and are best suited for very different uses.So, the difference in the graph of the given functions:
f(x) = x g(x) = 1/2 f(x)Plot on the graph as follows:
(Refer to the graph attached below)
Therefore, we can notice that the graph of function g(x) = 1/2 f(x) is below the graph of function f(x) = x in the 1st quadrant but above in the 3rd quadrant, and they both intersect at 0.
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A supervisor finds the mean number of miles that the employees in a department live from work. He finds x Overbar = 29 and s = 3.6. Which mileage is within a z-score of -1.5?
The mean number of miles that the employees in a department live from work is 24.
What is a z-score?
The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.
The z-score is given as
x = 29
s = 3.6
z = -1.5
Then the mean will be
[tex]-1.5 = \frac{29-u}{3.6}[/tex]
μ = 29 - 5.4
μ = 23.6 ≅ 24
Hence the answer is the mean number of miles that the employees in a department live from work is 24.
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The length of the base of an isosceles triangle is x. The length of a leg is 5x−4. The perimeter of the triangle is 102. Find x.
In the given isosceles triangle, the value of x is 10 units.
What is a triangle?A triangle is a polygon with three edges and three vertices. It belongs to the basic geometric shapes. A triangle having vertices A, B, and C is known as triangle ABC. Any three locations in Euclidean geometry that are not collinear result in a distinct triangle and a distinct plane.So, the value of 'x' will be:
Given triangle is an isosceles triangle. Then,
x + 5x - 4 + 5x - 4 = 10211x - 8 = 10211x = 102 + 811x = 110x = 110/11x = 10Therefore, in the given isosceles triangle, the value of x is 10 units.
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at a butcher shop, hilda bought 7 1/4 lb of beef she left with 18 9/20 lb of meat express the numbers of pounds of pork she bought using a decimal
Using mathematical operations, we can conclude that the pound of pork the girl brought was 11.2 pounds.
What are mathematical operations?An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value.The operation's arity is determined by the number of operands. The rules that specify the order in which we should solve an expression involving many operations are known as the order of operations. PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition Subtraction (from left to right).So, the pounds of pork the girl bought:
Beef bought: 7¼Total meat: 18 9/20Calculate pork as:
18 9/20 - 7¼369/20 - 29/4369 - 5(29)/20369 - 145/20224/2011.2Therefore, using mathematical operations, we can conclude that the pound of pork the girl brought was 11.2 pounds.
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What is the center and radius of -10x = -121 - y2 - x2 -22y
We need to find the center and the radius of
[tex]-10x\: =\: -121\: -\: y^2\: -\: x^2\: -22y[/tex]The general circle equation is the following
[tex](x-h)^2+(y-k)^2=r^2[/tex]where
(h,k) is the center and
r is the radius
1. rearrange the equation
[tex](x^2-10x)+(y^2+22y+121)=0[/tex]2. Add 25 on both sides
[tex](x^2-10x+25)+(y^2+22y+121)=25[/tex]3. Factor
[tex](x-5)^2+(y+11)^2=5^2[/tex]Now we have an equation that is very similar to the circle equation, so let's compare them
Center -> (h,k) = (5,-11)
radius -> r = 5
help meeeeeeeeeeeeeee pleaseeeeeee
Answer: Width = 5.7 feet, Length = 10.5 feet
Step-by-step explanation:
Let the width be w. Then, the length is 2w-0.9.
[tex]w(2w-0.9)=59.85\\\\2w^2 -0.9w-59.85=0\\\\w =\frac{-(-0.9) \pm \sqrt{(-0.9)^2 -4(2)(-59.85)}}{2(2)}\\\\w =5.7\\\\\implies 2w-0.9=10.5[/tex]
If
C
=
−
x
+
2
C=−x+2 and
D
=
x
2
+
8
x
−
1
,
D=x
2
+8x−1, find an expression that equals
3
C
+
3
D
3C+3D in standard form.
The expression that equals 3C+3D in standard form is:
x²+7x+1
Given:
C = -x+2
and D = x²+8x-1
we are asked to find out an expression which equals 3C+3D in standard form.
based on the conditions, formulate:
3C+3D
substitute C and D values.
⇒ 3(-x+2) + 3(x²+8x-1)
Apply multiplicative distribution law:
⇒ open the parenthesis.
⇒ -3x+6+3x²+24x-3
calculate the product or quotient
⇒ arrange the like terms.
⇒ 3x²+21x+3
⇒ Reduce the terms.
⇒ x²+7x+1
Hence we get the equation in standard form.
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What is the value of x?
30 points if answered
Answer: 20
Step-by-step explanation: They are both equal to each other, so 3x+50=6x-10. Then just solve for x by canceling out both sides.
Solve the following system for y: 2x+y=43x−12y=−4
On solving the equation 2x+y=-4 and 43x-12y=-4 for y we get the value of y=-164/67 as the definition of solution of equation says "A solution to an equation is a number that can be plugged in for the variable to make a true number statement".
What is system of equation?A group of equations involving one or more variables is known as a system of equations. The variable mappings that cause all component equations to be satisfied or intersected are the solutions to systems of equations.
Here,
2x+y=-4
43x-12y=-4
43(2x+y=-4)
2(43x-12y=-4)
86x+43y=-172
86x-24y=-8
subtracting equation,
67y=-164
y=-164/67
As stated in the definition of equation solution, "A solution to an equation is a number that can be plugged in for the variable to make a true number statement," we arrive at the value of y=-164/67 after solving the equations 2x+y=-4 and 43x-12y=-4 for y.
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What is the mean daily snowfall 8,3,12,1,1
Answer:25
Step-by-step explanation:
1. you place the numbers in order from least to greatest so 1,1,3,8,12
2. then you add those all up
3.then you divide how many numbers there are together
1+1+3+8+12=25
then you divide by 5 because that's how many numbers are shown for the daily snow fall
HOPE THIS HELPS
help meeeeeeeeeeeeeee pleaseeeeeee
Answer: 10.8 seconds
Step-by-step explanation:
[tex]-16t^2 +170t+40=10\\\\16t^2 -170t-30=0\\ \\ t=\frac{-(-170) \pm \sqrt{(-170)^2 -4(16)(-30)}}{2(16)}\\\\t \approx 10.8 \text{ } (t > 0)[/tex]
If 200 copies are made for $6.00, then what is the unit rate price per copy? How much will 150 copies cost?
To calculate the unit race price per copy, we can divide $6.00 by 200 copies:
[tex]\frac{6}{200}=0.03\text{ usd}[/tex]Each copy cost $0.03, to determine how much will cost 150 copies, we have to multiply the unit rate price by 150:
[tex]0.03\cdot150=4.5\text{ usd}[/tex]150 copies will cost $4.5
Evaluate the expression shown below and write your answer as a fraction in simplest form.
\frac{4}{5}\div\frac{9}{5}\cdot\frac{7}{3}
5
4
÷
5
9
⋅
3
7
The rules of BODMAS are useful in calulating mathematical expressions involving many operators. The given expression can be simplified as a simple fraction 28 / 27.
What are the rules of BODMAS?The rules of BODMAS can be understood by the full form of the name. B stands for bracket, O for of, D for division, M for multiplication, A for addition and S stands for subtraction. For a mathematical expression involving the combination of any of these operators the priority will be given to the letter that comes first.
The given expression can be written as,
4 / 5 ÷ 9 / 5 × 7 / 3
In the given expression there are three fractions separated by the sign of multiplication and division.
As per the rule of BODMAS, the division operator has the priority over multiplication operator.
Apply the rule mentioned above in the given expression to get,
4 / 5 ÷ 9 / 5 × 7 / 3
= 4 / 5 × 5 / 9 × 7 / 3
= 4 / 9 × 7 / 3
= 28 / 27.
Hence, the given expression is simplified to get the result as 28 / 27.
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Find the quotient of -20x9 and 2x³.
Answer:
-20x9= -180. 2 to the power of three =8 if you want the quotient it would be -22.5
Step-by-step explanation:
Eddie Munson can ship 52 chocolates in a hour so how long will it take for him to ship 65 chocolates
Find the equation of the line that passes through the point (-2, 7) and is parallel to the line y=4x+1. The answer must be written in the form ax+by+c=0, where a, b, c are integers
The equation of the line 4 · x - y + 15 = 0 is parallel to the line y = 4 · x + 1.
How to find the equation of the line parallel to another line
In this problem we must determine the equation of a line that is parallel to the line y = 4 · x + 1 and that passes through the point (x, y) = (- 2, 7). Lines are represented by algebraic equations of the form:
y = m · x + b
Where:
m - Slopeb - Interceptx - Independent variable.y - Dependent variable.Two lines are parallel if both share the same slope.
First, find the slope of the first line:
m = 4
Second, determine the intercept of the parallel line:
b = y - m · x
b = 7 - 4 · (- 2)
b = 7 + 8
b = 15
Third, write the resulting expression and find its standard form:
y = 4 · x + 15
4 · x - y + 15 = 0
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could you help me out
we can do a triangle to solve the apothem
the upper angle is equal to 360 divided by 8 since 360 is a complete turn and an octagon is composed of 8 equal triangles, so is 45
now we take a triangle from the triangle to apply trigonometric ratios and solve a
the upper angle of the new triangle is the half of the original so is 45/2
now i will use the trigonometric ratio of tangent
[tex]\tan (\alpha)=\frac{O}{A}[/tex]where alpha is the angle, O the opposite side drom the angle and a the adjacent side from the angle
so replacing
[tex]\tan (\frac{45}{2})=\frac{3.5}{a}[/tex]and solve for a
[tex]\begin{gathered} a=\frac{3.5}{\tan (\frac{45}{2})} \\ \\ a\approx8.4 \end{gathered}[/tex]the aphotem is 8.4
and the formula of the area of the octagon is
[tex]A=4\times a\times l[/tex]where a is the aphotem and l the measure f each side so 7
replacing
[tex]\begin{gathered} A=4\times8.4\times7 \\ A=235.2 \end{gathered}[/tex]the area is 235.2 square units