Karen spends $450 on monthly bills. Of this total amount, 12% is for phone service, 1/10 is for internet service, and 2/9 is for utilities. If the rest of the total amount is for food, how much does Karen have for food?
1 answer:
12%= 0.12 = 12/100 = 108/900 1/10 = 90/900 2/9 = 200/900 108/900 + 90/900 + 200/900 = 398/900 used 900- 398 = 502 502/900 = 251/ 450 251/450 × 450 = 251 Karen has $251 for food
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