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-BARSIC- [3]
3 years ago
13

The ratio of boys to girls at the beach cleanup was 7:8 if there were 42boys how many girls were there

Mathematics
1 answer:
Sav [38]3 years ago
8 0

Let x be the number of girls at the beach. The ratio of boys to girls at the beach cleanup was 7 : 8. If there were 42 boys and x girls, you can write a proportion:

\dfrac{42}{x}=\dfrac{7}{8}.

Use the main property of proportion:

42\cdot 8=7\cdot x,\\ \\x=\dfrac{42\cdot 8}{7},\\ \\x=6\cdot 8=48.

Answer: 48 girls

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