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OpenStudy (anonymous):
helpp... Betty has 10 more dimes than quarters. If she has $3.45, how many coins does she have?
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OpenStudy (anonymous):
d=dimes q=quarters d=q+10 3.45 = 0.1d + 0.25q 3.45 = 0.1(q + 10) + 0.25q 3.45 = 0.1q + 1 + 0.25q 3.45 - 1 = 0.1q + 0.25q 2.45 = 0.35q 7=q d=q + 10 d= 7 + 10 d=17 7 quarters and 17 dimes
OpenStudy (anonymous):
thank u so much....
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