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Virty [35]
3 years ago
6

Forty students are In Science club. Of those 45% are girls. This percent increase 56% after new girls join the club. How many ne

w girls joined?
Mathematics
1 answer:
stepan [7]3 years ago
8 0
45% of 40 is 0.45×40=18 girls
if x girls join then 56% of 40+x is 0.56(40+x)=18+x
22.4+0.56x=18+x
put together like terms
4.4=0.44x
<span>x=10 girls joined</span>
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