Asked by tom
ken spend 1/5 of his money on a dictionary. he gives $21 to his brother and has 1/2 of his money left. how much money does ken have left?
Answers
Answered by
Steve
if he starts out with x, we have
(x - x/5) - 21 = x/2
x = 70
check:
1/5 of 70 is 14
70-14-21 = 35, which is 1/2 of 70
(x - x/5) - 21 = x/2
x = 70
check:
1/5 of 70 is 14
70-14-21 = 35, which is 1/2 of 70
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