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balandron [24]
3 years ago
15

(5x+3y) - (2x-7y) +8x

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

11x + 10y

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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The ratio of boys to girls in a class room is 5 to 7. If there are 30 boys then how many girls are there
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Answer:

The ratio of boys to girls to 5:7

Let the number of boys be 5x

Let the number of girls be 7x

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and number of girls 7 x 6 = 42

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Since multiplying by 0.5 is the same as dividing by 2, the problem is described by the sentence

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How to solve -8+squre root (5a-5)=-3
sertanlavr [38]

Answer:

a=6

Step-by-step explanation:

Given equation:

-8+\sqrt{5a-5}=-3

Solving for unknown variable a

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Squaring both sides to remove the square root.

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