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Bumek [7]
2 years ago
12

Solve these equations by using subtraction.

Mathematics
1 answer:
tino4ka555 [31]2 years ago
8 0

Answer:

9)A=72

10)X=74

11)X=91/8

12)C=109

13)Y=14

14)B=211/12

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<h3>Answer: Choice A</h3>

0.10d + 0.05n = 2.25

d = 2n

================================================

Explanation:

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we have twice as many dimes as nickels, so we could have something like 18 dimes and 9 nickels. Algebraically we would write d = 18 and n = 9. The equation that fits this is d = 2n. The answer is between A and B at this point.

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Answer:

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3 0
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Read 2 more answers
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Step-by-step explanation:

am-an+bm-bn

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