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3 years ago

33% of what is 5? Help!

1 answer:

4 0

33% of 15 is 5. If 5 = 33%, that means that x/3=5. so multiply both sides by 3 to get x=15.
It is asking what number can you take 33% of and get 5? So you are not dividing 5 by 3, you are multiplying it by 3

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Evaluate the expression StartFraction 12 minus 3 y Over 2 EndFraction plus y StartFraction 2 y minus 4 Over y EndFraction for y

vladimir1956 [14]

Answer: $\frac{31}{6}$

Step-by-step explanation:

Given

$\Rightarrow \frac{12-3y}{2}+y\frac{2y-4}{y}$

$\Rightarrow \frac{12-3y}{2}+\frac{y^2+2y-4}{y}$

Now for $y=3$

$\Rightarrow \frac{12-3\times 3}{2}+\frac{3^2+2\times 3-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{9+6-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{11}{3}$

$\Rightarrow \frac{9+22}{6}=\frac{31}{6}$

3 0

3 years ago

Read 2 more answers

pencils are sold in packages of 5. explain why we need 6 packages in order to have enough for 27 students

Natasha_Volkova [10]

Because 5x6 is 30 that is plenty for 27 kids but 5x5 is only 25, that is not enough for 27 kids.

6 0

4 years ago

Read 2 more answers

Given that f(x) = x2 + 6x – 2, g(x) = x – 7, and h(x) = x + 4 find each function. (g − f)(x)

Wewaii [24]

$(g-f)(x) = -x^2-5x-5$

Step-by-step explanation:

Given functions are:

$f(x) = x^2+6x-2\\g(x) = x-7\\h(x) = x+4$

The operations on functions can be performed just as they are performed on polynomials

$(g-f)(x)=g(x)-f(x)\\=(x-7)-(x^2+6x-2)\\=x-7-x^2-6x+2\\$

Combining like terms

$=-x^2+x-6x-7+2\\=-x^2-5x-5$

Hence,

$(g-f)(x) = -x^2-5x-5$

Keywords: Functions

Learn more about functions at:

#LearnwithBrainly

5 0

3 years ago

Please help me out with this

blondinia [14]

thats one late assignment i wouldn't even do it tbh

7 0

3 years ago

Read 2 more answers

Can someone help me and give me the work plz

Neko [114]

y = sqrt(9 * 16).

This formula is derived because of similar parts of similar right triangles.

It is called the geometric mean which you can google for right triangles that share a common side.

y = sqrt(144)

y = 12

D is the only possible answer.

=============

x = sqrt(9^2 + 12^2)

x = sqrt(81 + 144)

x = sqrt(225)

x = 15

=============

z = sqrt( (9 + 16)^2 - 15^2)

z = sqrt( 25^2 - 15^2)

z = sqrt(625 - 225)

z = sqrt(400)

z = 20

Answer D

z =

7 0

3 years ago