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A problem states: "there are 7 more girls than boys in a club. There are 23 members in the club in all. How many girls are there in the club? Let g represent the number of girls. Which expression represents
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A problem states: "there are 7 more girls than boys in a club. There are 23 members in the club in all. How many girls are there in the club?

Let g represent the number of girls.

Which expression represents the number of boys?

A: g+7

B:g•7

C: 7-g

D:g-7

User Yuxiaoyu
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2 Answers

1 vote

The answer is D(g-7)


User Jinzhao Huo
by
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2 votes
Let
g = number of girls in the club
b = number of boys in the club.

There are 7 more girls than boys in the club, therefore
g = b + 7

Subtract 7 from each side.
g - 7 = b + 7 - 7
g - 7 = b

That is,
b = g - 7

Answer: D. g - 7

User Giggsey
by
7.4k points
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