Homework Help: algebra

Posted by Cat on Tuesday, January 3, 2012 at 10:40pm.

The Physical Education Deparment sells t-shirts for $12 and shorts for $8. One month, they sold 77 total items for $780 in total. How many t-shirts did they sell?

algebra - drwls, Tuesday, January 3, 2012 at 11:05pm
Let T be the number of T-shirts sold and S be the number of shorts.

T + S = 77
12 T + 8 S = 780

Solve the two simulatneous equations.
12T + 12S = 924

4S = 144

S = 36
T = 41

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