2007-09-03 02:32:42 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
N:72=7:9
or,N/72=7/9
or,N=(7/9)*72=56
2007-09-03 02:37:49 · answer #1 · answered by Anonymous · 0⤊ 0⤋
the simple rule is, if A:B = C:D then A x D = B x C
Using this your problem can be formulated as,
7 x 72 = 9 x N
(7 x 72) / 9 = N
i.e. N = 56
2007-09-03 02:42:42 · answer #2 · answered by Titubeta 2 · 0⤊ 0⤋
7:9= N:72
72/9= 8
7*8= 56
So N= 56
2007-09-03 02:42:05 · answer #3 · answered by Rejoice 2 · 0⤊ 0⤋
56
2007-09-03 02:35:54 · answer #4 · answered by MontyH 5 · 0⤊ 0⤋
7:9 = N: 72
72/9 = 8.
8 X 7 = 56.
N = 56.
2007-09-03 02:39:16 · answer #5 · answered by nothingtodo007 2 · 0⤊ 0⤋
proportional Problem
7 : 9 = N : 72
The means 9N
The extremes 7(72)
9N = 7(72)
9N = 504
Divide both sides of the equation by 9
9N / 9 = 504 / 9
N = 504 / 9
N = 56
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2007-09-03 02:50:20 · answer #6 · answered by SAMUEL D 7 · 0⤊ 0⤋