SOLUTION: 1. Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mi/h and the other bus averages 45 mi/h. When will they be 400 miles apart?

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Question 206190This question is from textbook prentice hall mathmatics Algebra 2
: 1. Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mi/h and the other bus averages 45 mi/h. When will they be 400 miles apart?

This question is from textbook prentice hall mathmatics Algebra 2

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mi/h and the other bus averages 45 mi/h. When will they be 400 miles apart?
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Going opposite directions makes it the sum of their speeds.
55 + 45 = 100 mph
400/100 = 4 hours