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satela [25.4K]
3 years ago
14

7/a = 28/40 how to do this

Mathematics
1 answer:
Korvikt [17]3 years ago
3 0
So first we cross multiply

7/a times 7/40 which equals = 28a and 280

Divided both sides by 28.
28a divided by 28 = A. Then 280 divided = 10

So a = 10
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