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23-10-2016
Mathematics

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A newsboy notices he has four times as many dimes as quarters. if his dimes and quarters total$1.95, how many of each has he?

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apologiabiology apologiabiology

23-10-2016

d=4q
25q+10d=195
5q+2d=39

sub 4q foro d
5q+2(4q)=39
5q+8q=39
13q=39
divide 13
q=3

d=4q
d=4(3)
d=12

12 dimes
3 quarters

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