Posted by **Tracey** on Thursday, January 13, 2011 at 10:32pm.

Need help problem solving--

A 500 space parking lot is packed with motorcycles and passenger cars, with only one vehicle in each space. How many motorcycles & cars r there if the total number of tires on the parked vehicles is 1650?

I think I have to do this in some kind of equation format, I am so confused.

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**JASPER**, Thursday, January 13, 2011 at 10:50pm
175 motorcycles, 325 cars

motorcycles represented as x and cars, y

2x+4y=1650

2(500-y)+4y=1650

1000-2y+4y=1650

2y=650

y=325

2x+1300=1650

2x=350

x=175

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**Tracey**, Thursday, January 13, 2011 at 10:51pm
Thanks so much Jasper:)

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**helper**, Thursday, January 13, 2011 at 11:10pm
you posted this 2 times below

please check there for an answer before posting again

I answered this same question 2 times below where you asked the first time

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