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m_a_m_a [10]
3 years ago
7

Solve the proportion 9/12 = 15/a

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

a=20

Step-by-step explanation:

You cross multiply: 9a=180

a=20.

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2 years ago
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7 0
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