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December 20, 2014

December 20, 2014

Posted by **Bianca** on Tuesday, July 24, 2007 at 3:02am.

Let x be the book price and y be the magazine price, both in cents. Your statements about the two purchases can be written

4x + 3y = 145

and

2x + 5y = 125

Now solve those two equations for x and y. A good first step would be to convert (double both sides of) the second equation to give you

4x + 10 y = 250

Combining that with the first equation can eliminate the x variable and give you

7 y = 105

y = 15 cents

We will be happy to critique your work

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