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3 years ago

Bill drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Bill

Mathematics

1 answer:

RUDIKE [14]3 years ago

7 0

Answer: 315 miles

Step-by-step explanation:

let onward speed = x mph, then distance = 7x

return speed = (x+18) mph, (same) distance = 5(x+18)

equating the two,

7x = 5(x+18)

2x = 90 ==> x = 45 mph

so distance = 7*45 = 315 miles

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