Asked by Salawu
Find two number who's sum is 21 such that one fifth of the smaller is equal to one tenth of the larger
Answers
Answered by
mathhelper
smaller ---- x
larger ---- 21-x
"one fifth of the smaller is equal to one tenth of the larger"
(1/5)x = (1/10)(21-x)
times 10
2x = 21-x
3x=21
x = 7
the numbers are 7 and 14
larger ---- 21-x
"one fifth of the smaller is equal to one tenth of the larger"
(1/5)x = (1/10)(21-x)
times 10
2x = 21-x
3x=21
x = 7
the numbers are 7 and 14
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