SOLUTION: My car gets 12 miles per gallon of gasolene. Gas is 4$/gallon.
If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay f
Algebra.Com
Question 148235: My car gets 12 miles per gallon of gasolene. Gas is 4$/gallon.
If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay for it with savings of gas cost?
Help please,
Bob
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
My car gets 12 miles per gallon of gasoline. Gas is 4$/gallon.
If I buy a car that gets 16 miles per gallon at a cost of $500, how long or how many miles will it take me to pay for it with savings of gas cost?
:
Let x = no. of miles to recover $500
:
Cost to drive old car: 4(x/12)
Cost to drive new car: 4(x/16)
:
Old car cost - new car cost = $500
- = 500
Cancel the 4's
- = 500
Multiply equation by 12; gets rid of the denominator and you have
4x - 3x = 12(500)
;
x = 6000 mi to recover the $500 spent (Lose the $ sign)
:
:
Check solution:
4(6000/12) - 4(6000/16) =
2000 - 1500 = 500
RELATED QUESTIONS
If my car gets 25 miles to the gallon and we have to go 980 miles, how much is the cost... (answered by Alan3354)
gas is $3.09 a gallon my car gets 18 miles per gallon i put $10 gallons of gas in it how... (answered by jpg7n16)
What will you save yearly on gasoline if you buy a more fuel efficient car that gets "m"... (answered by edjones)
My car gets 10-14 miles per gallon. How many miles can I go on a 25 gallon tank of gas. (answered by solver91311)
the price of gas is $2.60 per gallon. how much will it cost to travel 160 miles if your... (answered by Math_prodigy)
Preston drove a round trip of 212 miles. Preston's car gets 35 miles per gallon. If... (answered by TimothyLamb)
Hi, I am in need of help! if you can help me solve that would be great!thank you
The... (answered by Theo)
To travel a fixed distance, the number of gallons -N- of gasoline needed is inversely... (answered by josgarithmetic)
how do I figure out how much I will spend in gas if a car gets 20 miles per... (answered by josmiceli)