tatejordan02
01.08.2019 •
Mathematics
John invited 10 people to his birthday party, but each of those guests told 4 friends, who in turn asked 2 other friends to come. what percent of the party guests were the original 10 friends john invited?
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Ответ:
=12.5%
Ответ:
q=amount of quarters
d=amount of dimes
0.10d+0.25q=4.20
2d=q
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