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4 years ago

Please help. Brainliest.

Mathematics

1 answer:

irinina [24]4 years ago

4 0

C.) 2 is the right answer

Step-by-step explanation:

Given

-15(x-__)=25

We can see in the next step

$-15x+30=25$

We can check by substituting each option one by one

So,

A.) -30

$-15(x-(-30))=25\\-15(x+30)=25\\-15x-150=25$

We can see that by putting -30 we don't get the expression given in the picture so it is not the right answer.

B.) -2

$-15(x-(-2))=25\\-15(x+2)=25\\-15x-30=25$

We can see that by putting -2 we don't get the expression given in the picture so it is not the right answer.

C.) 2

$-15(x-2)=25\\-15x+30=25$

We get the same expression by putting 2 in the blank so it is the right answer.

Hence,

C.) 2 is the right answer

Keywords: Expressions, Variables

Learn more about expressions at:

#learnwithBrainly

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3 years ago

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Width of mural on painting = 5 inches

Height of mural on painting = 11 inches

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3 years ago

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frutty [35]

Step-by-step explanation:

there are several things to be considered to solve this.

the strategy is to caucuses the volume of the full "box", and then to deduct the 3-dimensional triangle that is "cut off" from the oil.

then we know the volume of the pool.

next step is to calculate the volume of a "box" with the same layout but is only 20 cm deep.

then we know how much volume can be pumped out in 30 minutes.

and then we divide the whole volume by that small volume to see how many 30-minues units are needed to empty the whole pool.

and then we transform the 30- minutes units into actual minutes or hours.

so, let's begin :

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so, the volume of the pool is

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now, how much volume can the pump eliminate in 30 minutes ?

the content of a box

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as 20 cm = 0.2 m

so, the pump pumps out 0.4 m³ in 30 minutes.

and we need to empty 2 m³.

that means we need

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