well, duh:
15 + .5x = 25 + .25x
Now just solve for x...
Write and solve an equation to find the number of miles you must drive to have the same cost of the car rentals.
$15 plus $0.50 per mile
$25 plus $.25 per mile
5 answers
10
Make Sure You know how to do it after looking at he answer. Don't just copy it down. Just Remember: what you do to now side, you MUST do to the other. Also Inver operations are Addition vs. Subtraction and Multiplication vs. Division.
15 + 0.50x = 25 + 0.25x
- 0.25x 25 - 0.25x
__________________________
15 + 0.25x = 25
-15 -15
__________________________
+ 0.25x = 10
------- -----
0.25 0.25
__________________________
x = 40
Now just do your check problem, in which you put in 40 where the x was, and solve the equation to see if you are right.
15 + 0.50(40) = 25 + 0.25(40)
Is this right? You can check it! Solve to equation to find out if I did it right!
15 + 0.50x = 25 + 0.25x
- 0.25x 25 - 0.25x
__________________________
15 + 0.25x = 25
-15 -15
__________________________
+ 0.25x = 10
------- -----
0.25 0.25
__________________________
x = 40
Now just do your check problem, in which you put in 40 where the x was, and solve the equation to see if you are right.
15 + 0.50(40) = 25 + 0.25(40)
Is this right? You can check it! Solve to equation to find out if I did it right!
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thanks ive had a hard time with math 8