SOLUTION: The distance coverd by a car traveling at a constant speed is directly proportional to the time spent traveling. If the car goes 75 miles in 5 hours, how far will it go in 7 hours?

Algebra ->  Proportions -> SOLUTION: The distance coverd by a car traveling at a constant speed is directly proportional to the time spent traveling. If the car goes 75 miles in 5 hours, how far will it go in 7 hours?      Log On


   

Question 1055576: The distance coverd by a car traveling at a constant speed is directly proportional to the time spent traveling. If the car goes 75 miles in 5 hours, how far will it go in 7 hours?
Answer by ikleyn(52778) About Me  (Show Source):
You can put this solution on YOUR website!
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The distance covered by a car traveling at a constant speed is directly proportional to the time spent traveling.
If the car goes 75 miles in 5 hours, how far will it go in 7 hours?
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They factually explained you everything.

Write a proportion

75%2F5 = d%2F7,

where "d" is the unknown distance.

Then solve this proportion for d: d = %2875%2A7%29%2F5 = 15*7 = 105 miles.

On proportions, there is a bunch of lessons in this site for you
    - Proportions
    - Using proportions to solve word problems
    - Using proportions to solve word problems in Physics
    - Using proportions to solve Chemistry problems
    - Using proportions to estimate the number of fish in a lake
    - HOW TO algebreze and solve this problem using proportions