Given:
[tex]0.27\div0.9[/tex]To divide the decimals, we must take care of the decimal points
So, we will divide it as follows:
[tex]0.27\div0.9=\frac{27}{100}\div\frac{9}{10}=\frac{27}{100}\times\frac{10}{9}=\frac{27}{9}\times\frac{10}{100}=3\times\frac{1}{10}=0.3[/tex]So, the answer will be 0.27 ÷ 0.9 = 0.3
Which of the following properties are being used to simplify the statement (3x + 4y) + 5x = 8x + 4y? Associative and commutative properties of addition Associative property of addition and commutative property of multiplication O O OC Associative and commutative properties of multiplication Associative property of multiplication and commutative property of addition
Answer:
Associative and commutative properties of addition
Explanation:
The one thing that the associative property of addition says that
[tex](a+b)+y=a+b+y[/tex]and the commutative property of addition says
[tex]a+b=b+a[/tex](the order of addition does not matter )
Now, the steps we take to solve our equation are the following:
[tex]\begin{gathered} \mleft(3x+4y\mright)+5x=8x+4y \\ 3x+4y+5x=8x+4y\text{ (the associative property of addition )} \end{gathered}[/tex]The second step is
[tex]\begin{gathered} 3x+4y+5x=8x+4y\text{ } \\ 3x+5x+4y=8x+4y\text{ (commutative property of addition.)} \end{gathered}[/tex]which simplifies to
[tex]\begin{gathered} 8x+4y=8x+4y \\ 4y=4y \end{gathered}[/tex]Hence, we used associative and commutative properties of addition to solve our equation.
Write an equation of the line passes through (-4,4) y=1/2x+1
Answer: y = -2x - 4
The equation of the line given is
[tex]\frac{1}{2}x\text{ + 1}[/tex]The slope - intercept form of equation is written as
y = mx + b
Where m = slope and b = intercept
From the above equation
m = 1/2
For a perpendicular line
[tex]\begin{gathered} For\text{ perpendicular line} \\ m1\text{ x m2 = -1} \\ m1\text{ = }\frac{1}{2} \\ \text{Therefore,} \\ \frac{1}{2}\text{ x m2 = -1} \\ \text{Make m2 the subject of the formula} \\ m2\text{ = }\frac{-1}{\frac{1}{2}} \\ m2\text{ = -1 x }\frac{2}{1} \\ m2\text{ = -2} \end{gathered}[/tex]Since m2 = -2
Hence, the perpendicular equation can be calculated
(y - y1) = m(x - x1)
The given point is ( -4, 4)
x1 = -4 and y1 = 4, and m = -2
(y - 4) = -2(x - (-4)
(y - 4) = -2(x + 4)
Open the parenthesis
y - 4 = -2x - 2*4
y - 4 = -2x - 8
y = -2x -8 + 4
y = -2x - 4
Convert the following equation
into slope-intercept form.
-4x + y = 12
°y = [ ? ]x +
Enter every answer is wrong need help
Answer:
Step-by-step explanation: im in 7th grade
what is volume of sphere if it is 1ft?
Compare the ratios 1:5 and 3:10.
The exact value of the ratio 3:10 is greater than the ratio 1:5.
What is Ratio?The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.
We have been given that the ratios 1:5 and 3:10
To comparing of the given ratios, we have to determine the exact value of each ratio.
The exact value of the ratio 1:5 is
⇒ 1/5 = 0.2
The exact value of the ratio 3:10 is
⇒ 3/10 = 0.3
Here is the exact value of the ratio 3:10 > ratio 1:5
Thus, the exact value of the ratio 3:10 is greater than the ratio 1:5.
Learn more about the Ratios here:
brainly.com/question/1504221
#SPJ5
I need to know if I got number 13 right
The given side lengths are 38mm, 45mm, and 82mm.
It is required to use inequalities to prove if the side lengths could form a triangle.
Recall the Triangle Inequality Theorem: The Triangle Inequality Theorem states that the sum of the measures of two sides of a triangle is greater than the measure of the third side.
Check the inequality:
[tex]\begin{gathered} 38+45>82\Rightarrow83>82-True \\ 38+82>45\Rightarrow120>45-True \\ 45+82>38\Rightarrow127>38-True \end{gathered}[/tex]Hence, the side lengths can form a triangle.
The required inequality is 38+45>82.
Let E be the event where the sum of two rolled dice is less than 8. List the outcomes in Ec.
Explanations:
Answer:
you have a square with side length of 4 meters. how many square meters is the garden
Given:
The length of the side of a square garden is a=4 meters.
To find the area of the square garden:
Using the area formula of the square,
[tex]\begin{gathered} A=a^2 \\ =4\times4 \\ =16m^2 \end{gathered}[/tex]Thus, the area of the square garden is 16 square meters.
THE FIRST ONE TO ANSWER GETS 50 POINTS !!!!!!!!!!!!!!!!!!!!!!!!!
There are 27 students in Mr. Mello's class. Find the total number of pages the students read by the end of November.
BEST ANSWER PLS !!!
If there are 27 students in Mr. Mello's class then the total number of pages the students read by the end of November will be 1350.
Given that there are 27 students in Mr. Mello's class.
We are required to find the total number of pages that the students read by the end of November.
Assume that there are 50 pages in the book and all the pages are read in the month of November.
Total number of pages read by all the students by the end of November=27*50
(Product of number of pages in the book and the number of students)
= 1350 pages
Answer:
810
Step-by-step explanation:
Based on the given conditions, formulate: 30x27
Calculate the product or quotient:810
I got this off of another answer site that had 4.6 star answers. the other person who answered got it off another person who asked the same thing in this website they got a high star too so I dont know which is correct
State the restrictions and then simplify:(16x^2+ 8x + 1)/(4x+ 1)²
We are given the following expression:
[tex]\frac{16x^2+8x+1}{(4x+1)^2}[/tex]We are asked to find the restrictions for this expression. The restrictions for a fractional expression is that the denominator must be different to zero, that is mathematically like this:
[tex](4x+1)^2\ne0[/tex]Now we solve for "x", first by taking square root on both sides:
[tex](4x+1)\ne0[/tex]Now we subtract 1 on both sides:
[tex]\begin{gathered} 4x+1-1\ne-1 \\ 4x\ne-1 \end{gathered}[/tex]Now we divide both sides by 4:
[tex]\begin{gathered} \frac{4x}{4}\ne-\frac{1}{4} \\ x\ne-\frac{1}{4} \end{gathered}[/tex]This means that the domain of the expression is restricted to values of "x" different from -1/4. Now we will simplify the expression by factoring the numerator
We factor the numerator using the perfect square trinomial method. We take the square root to the first and third terms of the denominator, and rewrite it like this:
[tex]16x^2+8x+1=(4x+1)^2[/tex]Replacing this in the expression we get:
[tex]\frac{16x^2+8x+1}{(4x+1)^2}=\frac{(4x+1)^2}{(4x+1)^2}=1[/tex]Therefore the expression is equivalent to 1.
I have an ACT practice guide problem that I need answered and explainedIt has a list of answers to choose from I will list that belowA. 1B. -2C. 4D. The limit does not exist.
SOLUTION
The limit of a function at a point aa in its domain (if it exists) is the value that the function approaches as its argument approaches a.
The limit of a function F exist if and only if
[tex]\begin{gathered} \lim _{x\rightarrow x^+}f(x)=\lim _{x\rightarrow x^-}f(x) \\ \\ \text{The left-hand limit =The Right-hand Limit} \end{gathered}[/tex]Considering the image given, the limit of the function from the left is from the first graph
[tex]\lim _{x\rightarrow1^-}f(x)=4\Rightarrow\text{ The left hand limit}[/tex]
Similarly, the limit of f(x) from the right-hand side is on the second graph
[tex]\lim _{x\rightarrow1^+}f(x)=-2\Rightarrow The\text{ Right -hand limit}[/tex]Since
[tex]\begin{gathered} \text{Left-hand limit}\ne Right\text{ hand imit} \\ 4\ne-2 \end{gathered}[/tex]Therefore
The Limit does not exist (D)
At a restaurant, the choices for hamburger toppings are cheese, tomato, lettuce,onion, mayo, mustard, ketchup and pickles. If you choose 5 toppings, how manyways can you pick your toppings?(Hint: Is this a combination or permutation?)
at the restauant we can choose 5 topping for a hamburger,
let us solve using combination,
[tex]^5C_0+^5C_1+^5C_2+^5C_3+^5C_4+^5C_5=[/tex]we know that,
[tex]^nC_0+^nC_1+^nC_2+\ldots+^nC_5=2^n[/tex]thus,
[tex]\begin{gathered} ^5C_0+^5C_1+^5C_2+^5C_3+^5C_4+^5C_5=2^5 \\ =32 \end{gathered}[/tex]hence, there are 32 ways to pick the toppings.
4) Select all ordered pairs that satisfy thefunction: y=-3x + 4A.(-2,10)B. (-1,1)C. (5,-11)D. (6,-22)
To know if an ordered pair satisfy an equation we have to substitute the values in it and see if the left side is equatl to the right side.
Pair (-2,10)
In this case x=-2 and y=10. Plugging the values in the equation:
[tex]\begin{gathered} 10=-3(-2)+4 \\ 10=6+4 \\ 10=10 \end{gathered}[/tex]since both sides have the same value, this paired satisfy the equation.
Pair (-1,1)
In this case x=-1 and y=1. Then
[tex]\begin{gathered} 1=-3(-1)+4 \\ 1=3+4 \\ 1=7 \end{gathered}[/tex]since this is not true, this ordered pair don't satisfy the equation.
Pair (5,-11)
In this case x=5 and y=-11. Then
[tex]\begin{gathered} -11=-3(5)+4 \\ -11=-15+4 \\ -11=-11 \end{gathered}[/tex]since this is true the ordered pair satisfy the equation.
Pair (6,-22)
In this case x=6 and y=-22. Then
[tex]\begin{gathered} -22=-3(6)+4 \\ -22=-18+4 \\ -22=-14 \end{gathered}[/tex]since this is not true, this ordered pair don't satisfy the equation.
Therefore the ordered pairs that satisfy the equation are the points A and C.
a haunted house found that it number of Halloween weekend customers can be modeled by
You have the following equation for the number N of halloween weekend customers in terms of the entrance price p (in dollars).
Consider that for each dollar p, there are 15 halloween weekend customers less. That is the meaning of the factor -15 in the given function for N(p). As p increases, the term -15p is lower and lower, which means that N is lower.
HELP PLEASE AND THANK YOU
Answer: 1/4
Step-by-step explanation:
1/4 chance
Suppose that the functions f and g are defined as follows F(x)=5/x+7g(x)=2/xFind f/g then give its domain using an interval or union of intervals Simplify your answer as much as possible (f/g)(x)=Domain of f/g:
Given the functions:
[tex]\begin{gathered} f(x)=\frac{5}{x+7} \\ \text{AND} \\ g(x)=\frac{2}{x} \end{gathered}[/tex]Let's solve for the following:
• (a) f/g
To solve for f/g let's divide f(x) by g(x).
We have:
[tex]\frac{f}{g}=\frac{f(x)}{g(x)}=(\frac{f}{g})(x)=\frac{\frac{5}{x+7}}{\frac{2}{x}}[/tex]Solving further, we have:
[tex]\begin{gathered} (\frac{f}{g})(x)=\frac{5}{x+7}\ast\frac{x}{2} \\ \\ (\frac{f}{g})(x)=\frac{5x}{2(x+7)} \end{gathered}[/tex]Therefore, the function f/g is:
[tex](\frac{f}{g})(x)=\frac{5x}{2(x+7)}[/tex]• (b) Domain of f/g.
The domain is the set of all possible x-values where the function is defined.
To find the domain, set the denominator to zero and solve for x.
We have:
[tex]2(x+7)=0[/tex]Divide both sides by 2:
[tex]\begin{gathered} \frac{2(x+7)}{2}=\frac{0}{2} \\ \\ (x+7)=0 \end{gathered}[/tex]Subtract 7 from both sides:
[tex]\begin{gathered} x+7-7=0-7 \\ \\ x=-7 \end{gathered}[/tex]Therefore, the domian is:
[tex]\mleft(-\infty,-7\mright)\cup(-7,\infty)[/tex]ANSWER:
[tex](a)\text{ ( }\frac{f}{g})(x)=\frac{5x}{2(x+7)}[/tex][tex](b)\text{ Domain: }(-\infty,-7)\cup(-7,\infty)[/tex]choose the correct statement of the rule; then complete the table for missing values. A merchant adds $3.00 to his cost to determine his selling price.
We have to find a relation between selling price in function of cost C.
If C is the cost, then the selling price is a function of C: f(
is 2017, mass uit snacks O) A bottle contains 2 liters of soda. Chris and his friends drink 985 milliliters of soda. How much soda is left? 1 99 tolomL 985 mL 1 DISME
ANSWER
1.015 L = 1,015 mL
EXPLANATION
To solve this we have to keep the relation 1 L = 1000mL in mind.
So if the soda bottle contains 2L, that is the same as 2000 mL. When we have to subtract two amounts (or add them) we always have to put them in the same units, so we either have to use them all in milliliters or in liters. Since the amount of soda they drank is less than 1000mL, it is better if we use milliliters:
[tex]2000mL-985mL=1015mL[/tex]The amount of soda left is 1015mL or, what is the same, 1.015 L
graph a line that passes through (-4,1) and has a slope of -3
We are given a point with coordinates;
[tex]\begin{gathered} (x,y)=(-4,1) \\ m=-3 \end{gathered}[/tex]We begin by expressing the line in slope-intercept form as follows;
[tex]\begin{gathered} y=mx+b \\ \text{Where,} \\ (x,y)=(-4,1) \\ m=-3,\text{ we now have} \\ 1=-3(-4)+b \\ 1=12+b \\ \text{Subtract 12 from both sides;} \\ 1-12=12-12+b \\ b=-11 \\ The\text{ equation now becomes;} \\ y=mx+b \\ y=-3x+(-11) \\ y=-3x-11 \end{gathered}[/tex]The graph would now be a shown below;
-2 5/7 x (-4 2/3). with steps
We want to do the following multiplication:
[tex](-2\frac{5}{7})\cdot(-4\frac{2}{3})[/tex]Let's transform that into a normal fraction:
[tex]\begin{gathered} 2\frac{5}{7}=2+\frac{5}{7}=\frac{14+5}{7}=\frac{19}{7} \\ \\ 2\frac{5}{7}=\frac{19}{7} \end{gathered}[/tex]and the other fraction
[tex]\begin{gathered} \text{ 4}\frac{2}{3}=4+\frac{2}{3}=\frac{12+2}{3}=\frac{14}{3} \\ \\ 4\frac{2}{3}=\frac{14}{3} \end{gathered}[/tex]Therefore we can multiply the following fractions:
[tex]\begin{gathered} (-\frac{19}{7})\cdot(-\frac{14}{3}) \\ \\ \end{gathered}[/tex]The result is
[tex](-\frac{19}{7})(-\frac{14}{3})=\frac{19}{7}\cdot\frac{14}{3}=\frac{19}{1}\cdot\frac{2}{3}=\frac{38}{3}[/tex]Therefore
[tex](-2\frac{5}{7})\cdot(-4\frac{2}{3})=\frac{38}{3}[/tex]if we want we can write it in the same form as the others
Final answer
[tex]\frac{38}{3}=12\frac{2}{3}[/tex]Colton has already jarred 18 liters of jam and will jar an additional 1 liter of jam every day. How many days does Colton need to spand making jam if he wants to jar 26 liters of jam in all?
8 days more
help me with this question please
we have that
the probability is equal to
P=293/613choose all that apply 3/4 ÷ 1/81/66243/4•1/83/4•8/14/3•8/1
Explanation:
The steps to divide fractions are KCF:
• K,eep the first fraction as it is
,• C,hange the division sign to a multiplication sign
,• F,lip the second fraction:
[tex]\begin{gathered} \frac{3}{4}\div\frac{1}{8}= \\ \frac{3}{4}\times\frac{8}{1}= \\ \frac{3\times8}{4\times1}=\frac{24}{4}=6 \end{gathered}[/tex]Here we can see which ones apply
Answer:
• 6
,• 3/4 • 8/1
What is the value of m ? How do you solve it ?
We have a parallelogram.
The diagonals of a parallelogram bisect each other. This means that each diagonal is divided in two equal segments by the other diagonal.
This let us write:
[tex]9=2n-1[/tex]and
[tex]m+8=3m[/tex]We can solve for n as:
[tex]\begin{gathered} 9=2n-1 \\ 9+1=2n \\ 10=2n \\ n=\frac{10}{2} \\ n=5 \end{gathered}[/tex]and for m as:
[tex]\begin{gathered} m+8=3m \\ m-3m=-8 \\ -2m=-8 \\ m=\frac{-8}{-2} \\ m=4 \end{gathered}[/tex]Answer: the value of m is 4.
write the systems of equations described by each augment matrix
EXPLANATION
Given the Matrix:
[tex]\begin{bmatrix}{2} & {-4} & {4} \\ {1} & {2} & {11} \\ {} & {} & {}\end{bmatrix}[/tex]Our system of equations will be:
[tex]\begin{bmatrix}{x1} & {y2} & {c1} \\ {x2} & {y2} & {c1} \\ {} & {} & {}\end{bmatrix}[/tex](1) x1 + y1 = c1
(2) x2 + y2 = c2
So, replacing values of given Matrix, this will give us:
Equation (1): 2x -4y = 4
Equation (2): x +2y = 11
To convert temperatures in Fahrenheit to temperatures in Celsius, take the temperature in degrees Fahrenheit, subtract 32, then divide the result by 1.8. This gives the temperature in degrees Celsius. Write an equation that shows the conversion process to Celsius using the variables c and f then convert a Celsius temperature of 10 degrees to Fahrenheit.
We will have the following:
*We are given the expression:
[tex]F=C\cdot\frac{9}{5}+32[/tex]*Now, we solve for C:
[tex]C=(F-32)\frac{5}{9}[/tex]***We convert 10 °C to Fahrenheeit:
[tex]F=(10)\frac{9}{5}+32\Rightarrow F=50[/tex]So 10°C are 50°F.
Barry spent 1/5 of his monthly salary for rent and 1/7 of his monthly salary for his utility bill. If $1012 was left, what was his monthly salary?
Given:
1/5 of Barry's salary was going for his rent.
1/7 of Barry's salary was going for his utility bill.
1012 dollars was left after all the payments.
Required:
What was his monthly salary?
Explanation:
Let us assume that Barry's monthly salary is 'x'
So the sum of his payments and the balance amount will give us his total salary.
[tex]total\text{ }salary=rent\text{ }payment+utility\text{ }payment+money\text{ }left[/tex]Now Barry uses 1/5 of his salary in rent, that is
[tex]\begin{gathered} rent\text{ }payment=\frac{1}{5}\times his\text{ }total\text{ }salary \\ \\ rent\text{ }payment=\frac{1}{5}\times x \end{gathered}[/tex]Barry uses 1/7 of his salary in utility bill, that is
[tex]\begin{gathered} utility\text{ }bill=\frac{1}{7}\times his\text{ }total\text{ }salary \\ \\ utility\text{ }bill=\frac{1}{7}\times x \end{gathered}[/tex]And after all the payments the money he is left with is 1012 dollars.
[tex]money\text{ }left=1012[/tex]Now let's calculate his total salary
[tex]\begin{gathered} total\text{ }salary=rent\text{ }payment+utility\text{ }bill+money\text{ }left \\ \\ x=\frac{1}{5}\times x+\frac{1}{7}\times x+1012 \\ \\ x=\frac{x}{5}+\frac{x}{7}+1012 \\ \\ x=\frac{7x+5x}{35}+1012 \end{gathered}[/tex]Simplifying it further we get
[tex]\begin{gathered} x=\frac{12x}{35}+1012 \\ \\ x-\frac{12x}{35}=1012 \\ \\ \frac{35x-12x}{35}=1012 \\ \\ \frac{23x}{35}=1012 \end{gathered}[/tex][tex]\begin{gathered} 23x=1012\times35 \\ \\ 23x=35420 \\ \\ x=\frac{35420}{23} \\ \\ x=1540 \end{gathered}[/tex]x = 1540 dollars
Final Answer:
Barry's monthly salary is 1540 dollars.
8 G Find the area of the shaded area. Round your answer to the nearest tenth
Answer:
47.1 units^2
Explanation:
The area of the shaded region is equal to the area of the bigger circle minus the area of the smaller circle.
Now, the area of a circle is given by
[tex]A=\pi r^2[/tex]where r is the radius of the circle.
The radius of the bigger circle is r = 8; thereofre, the area is
[tex]\begin{gathered} A=\pi(8)^2 \\ A=64\pi \end{gathered}[/tex]And the radius of the smaller circle is r = 7; therefore, the area is
[tex]A=\pi(7)^2[/tex][tex]A=49\pi[/tex]The area of the shaded region is the difference between the two areas above:
[tex]Area=64\pi-49\pi[/tex][tex]\text{Area}=15\pi[/tex][tex]\text{Area}=15(3.1415)[/tex]Rounded to the nearest tenth the answer is
[tex]\text{Area}=47.1[/tex]help me pleaae im a starr.
Answer: the value of m+n must equal 225.
Step-by-step explanation: If all the classroom crayons are accounted for in the table above, you can add all of the remaining crayons togeher which would get you to 65. 290 - 65 = 225.
This is the best answer I can come up with. I hope this helps.
Look at this diagram: AL G 3 © © 5 15 HE
Answer:
Slope = 1
y-intercept = -2
Equation: y = x
Explanation:
Given the following coordinates;
(6, 4) and (2, 0)
Get the slope
Slope = y2-y1/x2-x1
Slope = 0-4/2-6
Slope = -4/-4
Slope = 1
Get the y -intercept:
Substitute B(6,4) and m = 1 into y = mx+b
4 = 1(6) + b
4 = 6 +b
b = 4-6
b = -2
Get the required equation
Recall that y = mx+b
y = 1x + (-2)
y = x - 2
This gives the required equation