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GrogVix [38]
3 years ago
9

Calculate the number of minutes that Jenn called within Canada, to the United

Mathematics
1 answer:
vichka [17]3 years ago
3 0

Answer:

Canada = 20 minutes

United States = 30 minutes

Mexico = 15 minutes

Step-by-step explanation:

lets use c for Canada, u for United States, and m for Mexico in the following equations to match each condition.

.10c + .20u + .30m = 12.50 -> move all the decimals to the right twice for 10c + 20u + 30m = 1250 (it will still have the same results)

2m = u (talked to U.S twice as he talked to Mexico.)

m + c = 35 (total minutes talking for Mexico and Canada)

----------

vvv Using the answers provided vvv

----------

.10(20) + .20(30) + .30(15) = 12.50

2(15) = (30)

(15) + (20) = 35

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