Homework Help: MATHS

Posted by JERMAINE on Tuesday, February 9, 2010 at 3:38pm.

A store clerk sold 25 maths books and 10 english books for $855.00 .if she sold 10 maths books and 40 English books, she would have got $135 more. calculate the cost of each book.

MATHS - drwls, Tuesday, February 9, 2010 at 4:40pm
Let m be the math book cost (in dollars) and e be the english book cost (also in dollars). Solve these two equations simultaneously:
25m + 10e = 855
10m + 40e = 855 + 135 = 990

100m + 40e = 3420

90m = 2430
m = 27

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