derioid2345
derioid2345
10-09-2017
Mathematics
contestada
By what percent is 70 less than 200
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Аноним
Аноним
10-09-2017
200/x=100/70
(200/x)*x=(100/70)*x -
we multiply both sides of the equation by x
200=1.42857142857*x -
we divide both sides of the equation by (1.42857142857) to get x
200/1.42857142857=x
x=140
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