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??
+14913 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.
!
