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January 31, 2015

January 31, 2015

Posted by **Anonymous** on Thursday, September 16, 2010 at 5:38pm.

Annie kept track of the cars she saw on the highway? She saw twice as many Toyotas as Skyalks. The number of Pintos was eight less than the number of Toyotas. There were four times as many grand arms as Pintos. Maria counted 24 Grand Arms. How many cars did she see on the highway?

- Math -
**Henry**, Thursday, September 16, 2010 at 6:20pmX Skyalks

2X Toyotas

(2X - 8) Pintos

4(2X - 8) Grand Ams = 24

4(2X - 8) = 24

8X -32 = 24

8X = 24 + 32 = 56

X = 7 Skyalks

2X = 2 * 7 = 14 Toyotas

2X - 8 = 2 * 7 - 8 = 6 Pintos

Total = 7 + 14 + 6 + 24 = 49 cars.

- Math -
**rachel**, Thursday, September 16, 2010 at 6:24pmnumber of cars

skywalks = x

toyotas = 2x

pintos = 2x-8

grand arms = 4(2x-8) = 24

solve for the x using the grand arms equation above...

substitute x to the equations to get the number of cars per type of car..

add all the cars from each type..

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