SOLUTION: a car is traveling at a speed of 55 miles per hour. you want to write an algebraic expression to show how far the car will travel in a certain number of hours. what will be your co

Question 156854: a car is traveling at a speed of 55 miles per hour. you want to write an algebraic expression to show how far the car will travel in a certain number of hours. what will be your constant? your variable?
Found 2 solutions by Earlsdon, jim_thompson5910:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Well, you can use the distance formula for this:
d = rt where d = distance traveled, r = rate (speed) of travel, and t = the time used in traveling, so...
d = 55t where t (time) is the variable and there is no constant or, to put it another way, the constant is zero.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the distance-rate-time formula

Plug in

So in "t" hours, the car will travel miles. For instance, if , then which means in 2 hours the car travels 110 miles.

So the algebraic expression for the distance is where is the coefficient (in this case there is no constant) and is the variable

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