Posted by **running wild** on Saturday, November 13, 2010 at 12:35pm.

A university bookstore recently sold a wire-bound graph-paper notebook for $2.64, and a college-ruled notebook for $3.61. At the start of spring semester, a combination of 50 of these notebooks were sold for a total of $168.86. How many of each type were sold?

- algebra -
**drwls**, Saturday, November 13, 2010 at 12:45pm
Write one equation for the total number sold and another for the total money received. Each equation will have two unknowns, the number sold of each type.

Then solve the two equations in two unknowns.

There comes a time when you have to attempt these yourself. There is no time like the present.

- algebra -
**hog tied**, Sunday, November 14, 2010 at 12:10pm
Here is what I got.

3.61 * 38 = 137.18

2.64 * 12 = 31.68

137.18 + 31.68 = 168.86

wire bound graph paper notebook @ 2.64

bought 12

college ruled notebook @ 3.61 bought 38

did I do this right?

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