rmarabel1
rmarabel1
10-02-2017
Mathematics
contestada
7/a = 28/40 how to do this
Respuesta :
caseyl30
caseyl30
10-02-2017
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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