Posted by **Ann** on Wednesday, May 1, 2013 at 5:47pm.

I'm having a hard time coming up with the right equation to solve this one.

E-Z Stop Fast Gas sold $10,957 worth of gasoline yesterday. Regular grade sold for $2.30 a gallon and premium grade sold for $2.55 a gallon. If the station sold 420 more gallons of regular than of premium, how many gallons of regular were sold?

- Math -
**Theresa**, Wednesday, May 1, 2013 at 6:36pm
x=Regular Grade

y=Premium Grade

x(2.30)+y(2.55)=10,957

x=y+420

y+420(2.30)+y(2.55)=10,957

2.30y+966+2.55y=10,957

4.85y+966=10,957

4.85y=9991

y=2,060 Gallons of Premium Grade

x=2,060+420

x=2,480 Gallons of Regular Grade

Hope this helps :)

- Math -
**ANICIA**, Thursday, May 2, 2013 at 5:41pm
5/6

- Math -
**kim**, Thursday, May 2, 2013 at 6:57pm
i need help with square feet and cubic

- Math -
**Anonymous**, Thursday, May 2, 2013 at 7:24pm
ef

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