Adam and Barb planned a used book sale for the weekend so they gathered their books and agreed on a price for hardbacks and a lower price for paperbacks. Adam sold 14 hardcover books and 20 paperbacks and earned $234 for his efforts. Barb sold 15 hardcover books and 9 paperbacks. Barb made $201. How much did they charge for each hardcover and for each paperback?

Can anyone show how they did this problem if possible??

Guest Sep 24, 2020

#1**+1 **

How much did they charge for each hardcover and for each paperback?

**Hallo Guest!**

\(14p+20h=234\) | * 3

\(9p+15h=201\) | * 4

\(42p+60h=702\)

\(\underline{36p+60h=804}\)

\(6p=-102\)

\(p=-17\)

\(42\cdot (-17)+60h=702\\ 60h=702+714 \)

\(h=23.60\)

Adam and Barb sold the hardbacks for 23.60 each, gave away the paperbacks and gave 0.17 off each paperback.

!

asinus Sep 24, 2020