Answer:
$78
Step-by-step explanation:
pemdas says we multiply then add
8x6+30
48+30
78
It is $78 and not $228 because we do not add first when doing order of operations and when we multiply first we get 78 also it’s each tumbling is 8 dollars and there were 6 of them so we just multiply the cost by each tumbling and add the membership fee after.
Hopes this helps please mark brainliest
find the counterexample to show that the statement is incorrect the difference of any two counting numbers will be a counting numbera: 7-4=3 which is not a counting number b: 10-2=8 which is a counting numberc: 3-5= -2 which is not a counting number d: there is no counterexample they statement is correct.
The right answer to your question is b: 10-2=8 which is a counting number
1 divided by 4/9 lowest term
The number obtained 9/4 is the reciprocal of the number 4/9.
What is defined as the reciprocal of a number?The multiplicative inverse of the a number is defined as the reciprocal. In other words, a number's reciprocal is described as 1 divided by such a number. The product of a specific number and its reciprocal always equals one.The reciprocal of the a fraction can be calculated by swapping the numerator as well as denominator values.For the given number.
Divide 1 by 4/9
This can be written as;
= 1/(4/9)
= 9/4
Then, the number obtained 9/4 is the reciprocal of the number 4/9.
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Isabelle read a total of 20 books over 2 months. If Isabelle has read 30 books so far, how many months has she been with her book club? Assume the relationship is directly proportional.
Answer: she has been in book club for 3 months
Step-by-step explanation:
The reason is that she can read 10 books in one months than you would multiply it by three.
Answer:
3 months
Step-by-step explanation:
20:2/2=
10:1
10:1 x 3 = 30:3
30 books= 3 months.
How do you do it further problems.1. Find the Unit Rate2. Find the scale factor.3. Use the scale factor to get your answer.Use<, >, or = to compare each pair of
expressions.
(-5)², -5² (-5)³, -53
Using <, >, or = to compare each pair of expressions, we get:
(A) (-5)² > -5² (-5)³(B) -5² (-5)³ < -53(C) (-5)² > -53What are expressions?Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement.
It's possible to multiply, divide, add, or subtract with this mathematical operation.
So, using <, >, or = to compare each pair of expression:
Given expressions: (-5)², -5² (-5)³, -53
Then,
(A) (-5)²__-5² (-5)³
(B) -5² (-5)³ __ -53
(C) (-5)² __ -53
Now calculate as follows:
(A) (-5)²__-5² (-5)³
25 __ 25(-125)
25 > -3,125
(B) -5² (-5)³ __ -53
-3,125 < -53
(C) (-5)² __ -53
25 > -53
Therefore, using <, >, or = to compare each pair of expressions, we get:
(A) (-5)² > -5² (-5)³(B) -5² (-5)³ < -53(C) (-5)² > -53Know more about expressions here:
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ow 3. Hto What is the surface area of this triangular prism? 15 in. 12 in. 7 21 in 18 in. A. 846 in. B. 909 in. C. 1,062 in. D. 1,224 in. 2
To obtain the surface area of a triangular prism, the formula to employ is:
[tex]\begin{gathered} A_{triangular\text{ prism}}=2A_B+(a+b+c)h \\ \text{where A}_B=\sqrt[]{s(s-a)(s-b)(s-c)} \\ \text{where s=}\frac{a+b+c}{2} \\ a,b\text{ and c are sides of the triangular prism and h is the height} \end{gathered}[/tex]From the image, a=18in, b=21in, c =15in and h=12in
We have to obtain the value of 's' first, from the equation:
[tex]\begin{gathered} s=\frac{a+b+c}{2} \\ s=\frac{18+21+15}{2} \\ s=\frac{54}{2} \\ s=27in \end{gathered}[/tex][tex]\begin{gathered} \text{Then, we obtain the value of A}_B \\ A_B=\sqrt[]{s(s-a)(s-b)(s-c)} \\ A_B=\sqrt[]{27(27-18)(27-21)(27-15)} \\ A_B=\sqrt[]{27(9)(6)(12)} \\ A_B=\sqrt[]{17496} \\ A_B=132.27in^2 \end{gathered}[/tex]The final step is to obtain the area of the triangular, having gotten the values needed to be inputted in the formula;
[tex]\begin{gathered} A_{triangular\text{ prism}}=2A_B+(a+b+c)h \\ A_{triangular\text{ prism}}=(2\times132.27)+(18+21+15)12 \\ A_{triangular\text{ prism}}=264.54+(54)12 \\ A_{triangular\text{ prism}}=264.54+648 \\ A_{triangular\text{ prism}}=912.54in^2 \end{gathered}[/tex]Hence, the surface area of the triangular prism is 912.54 square inches
Assume the base unit of water is 555 gallons and the cost per unit is $1.74. How much money will be saved in a month by a family who conserves 8000 gallons of water per month?
1) Gathering the data
555 gallons ----- $ 1.74
2) If 8000 gallons could be spent
If a Family conserves 8000 gallons this family would not have an expense of?
Let's set a proportion for that:
555 g-----$1.74
8000g ---x
555x =13920 Dividing both sides by 555
x=25.08
If a family conserves 8000 gallons of water. They save $25.08 per month assuming that $1.74 is equal to 555 gallons of water.
4.5x + 5 = (if x = 4)
Answer:
23
Step-by-step explanation:
Which of the following lines is not perpendicular to y = –1.5x + 11?A. y =2/3x + 5B. 3y = 2x – 9C. 2y = 3x + 10D. –2x + 3y = 7
B. 3y = 2x – 9
is not perpendicular to the given line.
Explanation:The slopes of perpendicular lines are negative reciprocals
Given the line
y = -1.5x + 11
The slope is -1.5 or -3/2
Any line perpendicular to the one above must have its slope as 2/3
A. The slope is 2/3 . CORRECT
B. The slope is 2/3. CORRECT
C. The slope is 3/2. WRONG
D. The slope is 2/3. CORRECT
PLEASE HELP WILL GIVE BRAINLIEST URGENTTTTT. AM I RIGHT?
Answer 3rd one
Step-by-step explanation:
If the speed of pulley A is 600 r.p.m., find the speed of the other pulleys.
Speed of pulleys B and C: ___r.p.m.
Speed of pulley D: ___ r.p.m
The corresponding speed of pulleys B, C and D are 300rpm, 1200rpm and 240 rpm
How to find the rpm speed of the pulleys?
The speed of the pulleys can be determined by using the formula that relates the speed and diameters of the pulleys
N1/N2 = D2/D1
Where: D1 is the diameter of the driven pulley, D2 is the diameter of the drive pulley, N1 is the speed of the driven pulley and N2 is the speed of the drive pulley
Given: Da = 2'', Db =4'' Dc = 1'', Dd =5'' and Na = 600rpm
Na/Nb = Db/Da
600/Nb = 4/2
2Nb = 600
Nb = 600/2 = 300 rpm
Nb/Nc = Dc/Db
300/Nc = 1/4
Nc = 300 x 4 = 1200rpm
Nc/Nd = Dd/Dc
1200/Nd = 5/1
5Nd = 1200
Nd = 1200/5 = 240 rpm
Therefore, the speed of pulleys B, C and D are 300rpm, 1200rpm and 240 rpm respectively
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George shot the basketball 20 times in his game on Saturday. Of those 20 shots, he made 15.
What percentage of the shots did George make?
George made 75 percent of the shots.
First, let us understand the percentage:
A percentage is a fraction of a whole expressed as a number between 0 and 100. Nothing is zero percent, everything is 100 percent, half of everything is fifty percent, and nothing is zero percent.
To determine a percentage, we need to divide the portion of the whole by the whole itself and multiply by 100.
We are given the following:
George shot the basketball 20 times in his game on Saturday.
Of those 20 shots, he made 15.
We need to find the percentage of the shots George made.
The percentage of shots George made is given by:
Percentage = 15 / 20 * 100 = 15 * 5 = 75 %
So, 75 % of the shots did George make.
Thus, George made 75 percent of the shots.
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evaluate the polynomial -x^4-3+4x^2+2 when x=-1
the given expression is,
[tex]=-x^4-3+4x^2+2[/tex]put x = -1 in the above expression
[tex]\begin{gathered} =-(-1)^4-3+4(-1)^2+2 \\ =-1-3+4+2 \\ =2 \end{gathered}[/tex]so the answer is 2
Nicolas drinks 2/3 liters of water in the morning and three 1/2 liters of water at lunch . during basketball practice, he drinks another 2/5 liter of water. what is the total amount of water in liters, that Nicolas drinks.
The total amount of water Nicholas drank is 47/ 30 liters of water.
Given : Amount of water Nicholas drinks in the morning = 2/3 liters
Amount of water he drinks at lunch = 1/2 liters
Amount of water he drinks during his basketball practice = 2/5 liters
Thus to calculate the total amount of water he drank in the whole we would you the operation of addition in which we will add all the above mentioned value.
The value which comes after adding all of the above mentioned numbers is called sum .
Thus the total amount of water Nicholas drank = 2/3 + 1/2 + 2/5
On taking the LCM we will get
= [tex]\frac{20 + 15 + 12}{30}[/tex]
= 47 / 30
Thus the total amount of water Nicholas drank is 47/ 30 liters of water.
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what's the answer
find m<2ifm
The m∠2 is m∠2 = 14°.
What is degree measure?
Since an angle is measured in degrees, the term "degree measure" is used. Since 360 degrees make up one full revolution, it is divided into 360 equal sections. A degree is what the revolution is at each stage.
As given in the figure,
m ∠WHI = 160°,
m ∠EHI = 104°
m ∠THE = 42°
We have to find the m ∠2
From figure,
m ∠WHI = m ∠WHT + m ∠THE + m ∠EHI
m ∠WHT = m ∠WHI - m ∠THE - m ∠EHI
m ∠WHT = 160° - 42° - 104°
m ∠WHT = 14°
Hence the measure of angle 2 is, m ∠2 = 14°.
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una persona olvido su paraguas en un autobuses pero se acordó que la suma de los digitos del l camion eran 11 si su producto son 24 que numeros eran del camion
Ecuaciones
Llamemos x al primer número del camión y y al segundo número.
Tenemos que su suma es 11, así que:
x+y=11
También sabemos que su producto es 24:
xy=24
De esta forma, tenemos un sistema de ecuaciones. Vamos a despejar la x de la primera ecuación:
x=11-y
Y la reemplazamos en la segunda:
(11-y)y=24
Operamos y ordenamos el poninomio para formar la ecuación cuadrática:
[tex]\begin{gathered} 11y-y^2=24 \\ y^2-11y+24=0 \end{gathered}[/tex]Para hallar las soluciones de esta ecuación, tomemos los coeficientes de la ecuación de segundo grado:
a=1, b=-11, c=24
Y aplicamos la fórmula resolvente
[tex]\begin{gathered} y=\frac{-\text{b}\pm\sqrt[]{b^2-4ac}\text{ }}{2a} \\ y=\frac{11\pm\sqrt[]{(-11)^2-4(1)(24)}\text{ }}{2(1)} \\ y=\frac{11\pm\sqrt[]{121-96}\text{ }}{2} \\ y=\frac{11\pm\sqrt[]{25}\text{ }}{2} \\ y=\frac{11\pm5\text{ }}{2} \end{gathered}[/tex]Tenemos dos posibles respuetas:
y=16/2=8
y=6/2=3
Sustituimos ambas respuestas para hallar x:
x=11-y
x=11-8=3
x=11-3=8
En cualquier orden que los tomemos, los números del camón eran 3 y 8
Directions: Find the missing number in each question, then identify the property used.4. 10* ( 2 + 6 )= ( 10 * 2 ) + ( 10 * x )
Answer:
The missing number: 6
The property used: Distributive Property of Multiplication
Explanation:
Given the below;
[tex]10\cdot(2+6)=(10\cdot2)+(10\cdot x)[/tex]The below shows an example of the distributive property of multiplication;
[tex]a(b+c)=(a\cdot b)+(a\cdot c)[/tex]Applying the distributive property in the given equation, we can see that;
[tex]x=6[/tex]So the missing number is 6 and the equation can be written as;
[tex]10*(2+6)=(10\cdot2)+(10\cdot6)[/tex]Find the midpoint of the segment with endpoints of (-1, 7) and (3, -3) andenter its coordinates as an ordered pair. If necessary, express coordinates asfractions, using the slash mark (7) for the fraction bar.
The two endpoints we have are (-1,7) and (3,-3).
And we need to find the midpoint.
Step 1. Label the given coorfinates as (x1,y1) and (x2,y2):
[tex]\begin{gathered} x_1=-1 \\ y_1=7 \\ x_2=3 \\ y_2=-3 \end{gathered}[/tex]Step 2. Use the midpoint formula:
[tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Substituting the values for x1, x2, y1, and y2 that we found in step 1:
[tex](\frac{-1+3}{2},\frac{7-3}{2})[/tex]Step 3. Solve the resulting operations to find the coordinates of the midpoint:
[tex](\frac{2}{2},\frac{4}{2})[/tex]Solving the divisions:
[tex](1,2)[/tex]The midpoint is (1,2).
Answer: (1,2)
Given AABC with vertices A(7, 7) B(-5, 3) and C(3,-5),
1) If BE is a median, then point E is located at what coordinate?
2) If AL is a median, at what coordinate would L be located?
3) If LP is a perpendicular bisector, what would be the slope of LP?
4) An altitude is always.
to the side of the triangle.
ABC's vertices are points A, B, and C. ABC's sides are made up of the AB, BC, and CA segments.
How to calculate vertices of ABC?Determine the length of the median across vertex A of triangle ABC, which has vertices A (7,3), B (5,3), and C.
Assume M(x,y) represents the ABC median from A to BC.
M will be the point at which BC splits in half.
x 1 =5, y1 =3
x 2 =3,y2 =−1
Using the midpoint formula, x=(x 1 + x 2)/2
∴x=(5+3)/2=8/2=4
Using the midpoint formula, y=(y 1 + y 2 )/2
∴y=(3+(−2))/2=2/2=1
Consequently, M's coordinates are (4,1).
The distance formula reads d(AM)=
By distance formula, d(AM)= √[(x2 - x1)² + (y2 -y1)²]
x1 = 7,y1 = -3
x2 = 4,y2 = 1
∴d(AM) = √[(4- 7)² + (1 - (-3)²]
∴d(AM) = √(-3)² + (4)² = √9 + 16
∴d(AM) = √25 = 5
As a result, the median AM is 5 units long.
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Radiation machines used to treat tumors produce an intensity of radiation that variesinversely as the square of the distance from the machine. At 3 meters, the radiationintensity is 62.5 milliroentgens per hour. What is the intensity at a distance of 2.6 meters?The intensity is(Round to the nearest tenth as needed.)
Answer: Intenisy = 83.2 milliroentgens per hour
Let the intensity from the radiation = I
Let the distance = d
The intensity is inversely proportional to the square of its distance
[tex]\begin{gathered} I\text{ }\propto\text{ }\frac{1}{d^2} \\ \text{Introducing a proportionality constant} \\ I\text{ = }\frac{k\text{ x 1}}{d^2} \\ I\text{ = }\frac{k}{d^2} \\ \text{When I = 62.5 , d = 3} \\ \text{From the above equation} \\ K=I\cdot d^2 \\ K\text{ = 62.5 }\cdot(3)^2 \\ K\text{ = 62.5 x 9} \\ K\text{ = 562.5 } \\ \text{ Find the intensity wen D = 2.6 meters} \\ I\text{ = }\frac{k}{d^2} \\ I\text{ = }\frac{562.5}{(2.6)^2} \\ I\text{ = }\frac{562.5}{6.76} \\ I\text{ = 83. 2 milliroentgens per our} \end{gathered}[/tex]Mr. Newman packed 16 large - size ornaments and 29 medium - size ornaments into a box. He packed 13 boxers like this. Mr.Newman used this this equation to find x, the number of ornaments he packed into all the boxes x = (16+29)13how many ornaments did Mr.Newman pack into the boxes
We were told that Mr. Newman packed 16 large - size ornaments and 29 medium - size ornaments into a box. This means that the number of large and medium ornaments in each box is 16 + 29. Given that there were 13 boxes and x represents the total number of ornaments, the equation would be
x = (16 + 29)13
x = 45 * 13
x = 585
Option F is correct
What does the y-intercept on this graph represent? a.At 0 days, there are 400 pages remaining b. At 0 days, there are 16 pages remaining c. At 16 days, there are no pages remaining d. At 16 days, there are 400 pages remaining,
Explanation:
The y-intercept is the point where the line crosses the y-axis. This always happens when x = 0.
In this case x = 0 represents 0 days. The y-intercept is 400 pages remaining
Answer:
The answer is option a. At 0 days there are 400 pages remaining
A file that is 273 megabytes is being downloaded. If the download is 15.6% complete, how many megabytes have been downloaded? round your answer to the nearest tenth.
1750 megabytes has been downloaded.
What do you mean by percentage?
In mathematics, a percentage is a number or ratio that can be expressed as a fraction of 100. If you need to calculate the percentage of a number, divide the number by the whole number and multiply by 100. Percentages therefore mean 1 in 100. The word percent means around 100. Represented by the symbol '%'.Percentages have no dimension. Hence it is called a dimensionless number.
It is given that 273 megabytes has been downloaded and it is 15.6% of complete.
Let x be the complete storage
15.6% of x = (15.6/100) × x
(15.6/100) × x = 273
x = (273/15.6) × 100 = 2730/15.6 = 1750
Therefore, 1750 megabytes has been downloaded.
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(12-√-8)/2
solve as a complex number?
The solution to the expression (12-√-8)/2 as a complex number is 6 - i√2.
What is expression?
In mathematics, an expression is a combination of numbers, variables, and mathematical operations, such as addition, subtraction, multiplication, division, exponents, and roots.
The expression (12-√-8)/2 involves a square root of a negative number, which cannot be represented by a real number. Therefore, we need to extend the real numbers to the complex numbers to solve this expression.
To evaluate the square root of a negative number, we can use the imaginary unit, denoted by i, which is defined as the square root of -1. Then, we have:
√-8 = √(8) √(-1) = 2i√2
Substituting this value back into the original expression, we get:
(12-√-8)/2 = (12 - 2i√2)/2
Simplifying the expression by dividing both the numerator and denominator by 2, we get:
(12 - 2i√2)/2 = 6 - i√2
Therefore, the solution to the expression (12-√-8)/2 as a complex number is 6 - i√2.
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Factorise 49n^3 -- 25m^3
Factorization of 49n^3 -- 25m^3 is (5m + 7n) × (5m - 7n)
A difference of two perfect squares, A2 - B2 can be factored into (A+B×(A-B)
(A+B) • (A-B)
= A2 - AB + BA - B2
= A2 - AB + AB - B2
= A2 - B2
AB = BA is the commutative property of multiplication.
- AB + AB equals zero and is therefore eliminated from the expression.
⇒ 25 is the square of 5
⇒ 49 is the square of 7
⇒ m2 is the square of m1
⇒ n2 is the square of n1
Hence, The Factorization is (5m + 7n) × (5m - 7n)
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find rates in context
To find out the rate of change, divided 110,400 miles by 24 hours
so
110,400/24=4,600 miles per hour
8. Erin bought 4 jars of jelly and 6 jars of peanut butter for $19.32. Adam bought 3 jars of jelly and 5 jars
of peanut butter for $15.67.
Find the cost of a jar of peanut butter using substitution.
The cost of a jar of peanut butter is $2.36.
Let cost of one jar of jelly be x and the cost of jar of peanut butter be y.
According to question, total cost of 4 jars of jelly and 6 jars of peanut butter is $19.32.
So, 4x+6y = 19.32 ..............(i)
According to question again, the cost of 3 jars of jelly and 5 jars of peanut butter is $15.67.
So, 3x+5y = 15.67 ...........(ii)
4*(ii) - 3*(i) we get,
12x+20y - (12x+18y) = 62.68 - 57.96
2y = 4.72
y = 4.72/2 = 2.36
Substituting the value of y in (i) we get,
4x+6*2.36 = 19.32
4x+14.16 = 19.32
4x = 19.32-14.16
4x = 5.16
x = 5.16/4
x = 1.29
Hence the cost of jar of peanut butter is $2.36.
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Math To Do, -ReadyHome Jefferson County School X+/student/dashboard/homeWhich unit would you most likely use to measure the capacity of a mug?
Although both fluid ounces and quarts are measurements for volume, the mug would be a very small fraction of a quart.
Thereby, the most likely unit of measurement used for the capacity of a mug would be fluid ounces.
What is the probability that a student‘s favorite hobby is roller skating ?Theoretical =Experimental =
The theoretical probability is given by 1 over the number of hobbies.
If there is a total of 8 hobbies, the probability of a student having a specific hobby is:
[tex]P=\frac{1}{8}[/tex]The experimental probability is given by the number of students with that hobby over the total number of students. If 3 students have the hobby roller skating among the 24 students surveyed, the probability is:
[tex]P=\frac{3}{24}=\frac{1}{8}[/tex]i really need help with this math question
(7, -3) are the coordinates of R' after dilation with center (0, 0) and with the scale factor of 2.
What is meant by graph and coordinates?A graph's basic relationship is represented by a point.
A pair of numbers containing two coordinates define each point.
A coordinate is one of a set of numbers used to locate a point on a graph.
Each point is assigned an x and a y coordinate.
Each point is identified by an ordered pair of numbers: an x-coordinate on the x-axis and a y-coordinate on the y-axis.
Parentheses indicate ordered pairs (x-coordinate, y-coordinate).
The starting point is at (0,0).
The horizontal and vertical distances from the two reference axes are used to describe the position of a point on a coordinate plane.
So, after dilation with center (0, 0) and with the scale factor of 2, the coordinates will be:
R' are (7, -3)
P' are (4,-3)
Q' is (4,4)
Hence, the coordinates of R are (7, -3).
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what does 7m- m equal
7m-m is equal to 6m.