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23 January, 04:14

TUDIvIl P ...

lesson 34)

The piggybank had $25.65 in dimes and

quarters. If there were 20 more quarters

than dimes, how many dimes were in the

piggybank?

+2
Answers (1)
  1. 23 January, 06:36
    0
    Step-by-step explanation:

    0.10d + 0.25q = 25.65

    q = d + 20

    0.10d + 0.25 (d + 20) = 25.65

    0.10d + 0.25d + 5 = 25.65

    0.35d = 25.65 - 5

    0.35d = 20.65

    d = 20.65 / 0.35

    d = 59 <== = there were 59 dimes

    q = d + 20

    q = 59 + 20

    q = 79 ... there were 79 quarters
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