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hodyreva [135]
3 years ago
13

Porfa es para un examen

Mathematics
1 answer:
lakkis [162]3 years ago
4 0

Answer:

Tu examen es para potos

Step-by-step explanation:

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The classes at the middle school want to raise money. The sixth grade runs a bake sale for 55 hours and makes $170. The seventh
Jet001 [13]
The sixth grade runs a bake sale for 55 hours and makes $170.
So in one hour, they made 170/55 = 3.09 dollars.
Rate: $3.09/h

The seventh grade sets up a dunking booth for 44 hours and makes $112.
So in one hour, they made 112/44 = 2.54 dollars.
Rate: $2.54/h

The eight grade has a car wash and makes $192 in 66 hours.
So in one hour, they made 192/66 = 2.90 dollars.
Rate $2.90/h

3.09 > 2.90 > 2.54
So R(6th) > R(8th) > R(7th)

Which means that the sixth grade has the highest rate for raising money.

Hope this helps! :)
6 0
3 years ago
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What is the inverse of the function f(x) = 2x + 1?
tiny-mole [99]

F(X) = 2x + 1

Replace f(x) with y:

Y = 2x+ 1

Switch variables:

X = 2y + 1

Solve for Y:

Subtract 1 from both sides:

X- 1 = 2y

Divide both sides by 2:

X-1 / 2 = y

Rewrite so y is in the left side:

Y = x-1 / 2

Replace y with f^-1(x):

F^-1(x) = x-1 / 2

This can also be written as x/2 - 1/2

8 0
3 years ago
Choose six and five-sixths as an improper fraction and as a mixed number
ollegr [7]

\text{Mixed number:}\ 6\dfrac{5}{6}\\\\\text{Improper fraction:}\ 6\dfrac{5}{6}=6+\dfrac{5}{6}=\dfrac{6\cdot6}{6}+\dfrac{5}{6}=\dfrac{36}{6}+\dfrac{5}{6}=\dfrac{41}{6}

3 0
4 years ago
Which equations show that the set of whole numbers is closed under addition?
leonid [27]
<span>B. 1 + 1 = 2
C. 2 + 0 = 2</span>
4 0
3 years ago
Math work pls help!!
melisa1 [442]

Answer:

Step-by-step explanation:

The graph is generally increasing.  Thus, as the weight increases, the cost increases with it.

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2 years ago
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