Mr. and Mrs. Storey drove 2,400 miles during their vacation. Mr. Storey (y) drove 3 times as many miles as Mrs. Storey (x).

1 answer:

5 0

X + y = 2400
y = 3x

x + 3x = 2400
4x = 2400
x = 2400/4
x = 600 <== Mrs. Storey drove 600 miles

y = 3x
y = 3(600)
y = 1800 <== Mr. Storey drove 1800 miles

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