tyre2k17
tyre2k17
17-07-2017
Mathematics
contestada
Solve each proportion. Show your work
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carleyr01
carleyr01
17-07-2017
a)
2x/7 = 12/14
x=6
I don't know b i am sorry
Answer Link
texaschic101
texaschic101
17-07-2017
(2x)/7 = 12/14
cross multiply
(2x)(14) = (7)(12)
28x = 84
x = 84/28
x = 3
3 / (x - 1) = 5/7
cross multiply
5(x-1) = (7)(3)
5x - 5 = 21
5x = 21 + 5
5x = 26
x = 26/5 or 5.2
Answer Link
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