3 years ago

I REALLY NEED HELP PLEASE!

Mathematics

1 answer:

zhuklara [117]3 years ago

6 0

Answer:

The answer to that question is b

Step-by-step explanation:

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mr Goodwill [35]

Boys: x
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From the text of the task:

$\left \{ {{\frac{x}{y}=\frac{5}{7}} \atop {x+y=48 \rightarrow x=48-y}} \right.$

Replacing x:

$\frac{48-y}{y}=\frac{5}{7}\\
\\
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\\
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\\
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So there are 28 girs and 20 boys

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4 years ago

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