Friday, May 21, 2010

Help me please! Solve it....?

The Rent -A-Car company rents a compact car for a fixed amount each day plus a fixed amount for each mile driven. Joe spent $134 to rent a car for 5 days and drove it 450 miles. Patti spent $106 to rent the same kind of car for 4 days and drove 350 miles. Find the daily charge and the charge per mile for the compact car.





Please show process. Thanks for the help. :)

Help me please! Solve it....?
5x + 450y=134


4x + 350y=106





are equals to:


20x + 1800y = 536 ......(a)


20x + 1750y = 530.......(b)





then





1. Subtruct (a) with (b)





(1800-1750)y = 6 ---%26gt; 50y=6 ---%26gt; y=6/50


--%26gt; charge per mile is $ 0.12





2. Use above result to first statement above.


5x + 450(0.12) = 134


5x + 54 = 134


5x = 80 ---%26gt; x=80/5=16


---%26gt; daily rate is $16





May it helps
Reply:sounds like a home work problem. I don't do those.... You need to pay attention in class.
Reply:you need a control i need to know how much it costs to rent the car initially


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