Question

Ms. Bordelon bought 3packs of pens and 4 binders for a total cost of $16.75 . Mr . Overman bought 2 packs of pens and 5 binders for a total cost of $17.00. How much does one binder cost

Answer 1

$2.50

Explanation:

We can set up a system of equations, where p is the price of one pack of pens and b is the price of one binder.

3p + 4b = 16.75

2p + 5b = 17

We can solve by elimination by multiplying the top equation by -2 and multiplying the bottom equation by 3.

-6p - 8b = -33.5

6p + 15b = 51

Add them together:

7b = 17.5

b = 2.5