Asked by Andrea
According to a rating agency, a car's MPG (miles per gallon) ratings are: 25 MPG for city and 30 MPG for highway driving. A driver spent $20.00 (the gasoline costs $1.25/gallon) on a combined city and highway trip of 450 miles. How many miles "C" in city and "H" on highway was the car driven ?
I need to get two equations out of this and use the substitution or elimination method to solve this problem.
I need to get two equations out of this and use the substitution or elimination method to solve this problem.
Answers
Answered by
PsyDAG
Let C = 450 - H
$1.25 (30H + 25C) = $20
Substitute the value of C in the first equation into the second. Solve for H. Put value of H into the first equation to solve for C. Check by putting both values into the second equation.
I'll let you do the calculations. I hope this helps. Thanks for asking.
$1.25 (30H + 25C) = $20
Substitute the value of C in the first equation into the second. Solve for H. Put value of H into the first equation to solve for C. Check by putting both values into the second equation.
I'll let you do the calculations. I hope this helps. Thanks for asking.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.