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Ahat [919]
2 years ago
8

A SCHOOL HAS 320 GIRLS AND 250 BOYS

Mathematics
1 answer:
tigry1 [53]2 years ago
8 0

Answer:

89

Step-by-step explanation:

I just multiplied 320 by 0.2 and then 250 by 0.1 and then added them  together. I hope it helps and I'm not sure what method you would use for this but that's mine.

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What is the first step to solve for n <br><br> in the following equation?<br> 3n - 7 = 30
sergejj [24]

Answer:

Simplifying

3n + 7 = 30

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Solving

7 + 3n = 30

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-7' to each side of the equation.

7 + -7 + 3n = 30 + -7

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Step-by-step explanation:

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ruslelena [56]

Given:

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To find:

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