Homework Help: Pre algebra

Posted by tera on Wednesday, February 11, 2009 at 5:54pm.

The Everton college store paid 1532 dollars for an order of42 calculators.The store paid 18 dollars for each scientific calculator,and tthe other all graphing calculators, cost the store 54 dollars each, How many of each calsulator was ordered?

Pre algebra - drwls, Wednesday, February 11, 2009 at 7:42pm
x + y = 42
18x + 54y = 1532

Solve that pair of equations for x (the number of scientific calculators) and y (the number of graphing calculators)

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