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NISA [10]
3 years ago
11

OKAY i CANT EVEN FIGURE THIS ONE OUT NEED HELP. -3 (5 – 2y)

Mathematics
1 answer:
inessss [21]3 years ago
5 0

negative multiplied by positives = negative numbers

3 x 5 = -15

negative multiplied by a negative = a positive number

-3 x -2y = +6y

so combine both gets -15 +6y

or a better way to write it is 6y-15

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The ratio of boys to girls in a school is 5:4. if there are 500 girls , how many boys are there in the school?
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Answer:

The number of boys in the school is;

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Explanation:

Given that the ratio of boys to girls in a school is 5:4;

5\colon4

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The number of boys in the school will be;

\begin{gathered} \frac{B}{G}=\frac{5}{4} \\ G=500 \\ B=\frac{5\times G}{4}=\frac{5\times500}{4} \\ B=625 \end{gathered}

Therefore, the number of boys in the school is;

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