SOLUTION: Please help me solve: How much fuel that sells for $.85 per gallon should be added to 13 gallons of fuel that sells for $1.75 per gallon to obtain a mixture that sells for $1.50 p

Question 617688: Please help me solve: How much fuel that sells for $.85 per gallon should be added to 13 gallons of fuel that sells for $1.75 per gallon to obtain a mixture that sells for $1.50 per gallon?
Thanks
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Please help me solve: How much fuel that sells for $.85 per gallon should be added to 13 gallons of fuel that sells for $1.75 per gallon to obtain a mixture that sells for $1.50 per gallon?
**
let x=gallons of $.85 fuel to be added.
13+x=gallons of mixture
.85x+1.75*13=1.50(13+x)
.85x+22.75=19.50+1.5x
.65x=3.25
x=3.25/.65=5
gallons of $.85 fuel to be added=5

RELATED QUESTIONS
How much fuel that sells for $1.25 per gallon must be mixed with 180 gallons that sells... (answered by kev82)

How many gallons of fuel costing $1.15 a gallon must be mixed with a fuel costing $.85... (answered by drk)

Please help me solve this word problem, using substitution or elimination: How much of (answered by josmiceli)

A pilot has a Cessna 172 Skyhawk airplane with a fuel tank that holds 56 gallons of 100LL (answered by mathslover)

A fuel distributor has 161,798 gallons of fuel with 1% sulfur content, which exceeds... (answered by stanbon)

Here's the question I am having difficulty with. Can you please help? A cruise liner... (answered by josmiceli)

I was working on this, and have an idea of how to figure it out, but don't really... (answered by josgarithmetic,MathTherapy)

a boat owner mixes together oil and gasoline to make 12 gallons of fuel for 8$ per... (answered by Maths68)

Please help me to solve a problem by using a proportion: 66) Oil and Gas: An outboard... (answered by stanbon)