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Advocard [28]
3 years ago
15

8. Jack has twice as many dimes as quarters. If the total

Mathematics
1 answer:
kati45 [8]3 years ago
8 0

Answer:

Step-by-step explanation:

d=2q, q=d/2

10d+25q=630, using q=d/2

10d+25d/2=630

20d+25d=1260

45d=1260

d=28

So he has 28 dimes.

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Answer:

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