# help with this word problem. algebra wordproblem

• Aug 19th 2012, 11:23 AM
daryltherunner
help with this word problem. algebra wordproblem
the expression 19.95+ 0.2x models the daily cost in dollars of renting a car. in the expression x represents the number of miles the car is driven . what is the cost of renting a car for a day when the car is driven 50 miles? thanks!! is the answer 20.45x? if not show me how you did it.
• Aug 19th 2012, 01:40 PM
Educated
Re: help with this word problem. algebra wordproblem
$\text{Daily cost} = 19.95+ 0.2x$ where x = the number of miles the car has driven

You know the car has been driven 50 miles, and so replace x with 50 to get...

$\text{Daily cost} = 19.95+ 0.2 \cdot (50)$
$\text{Daily cost} = ...$