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??
How much did they charge for each hardcover and for each paperback?
\(14p+20h=234\) | * 3
\(9p+15h=201\) | * 4
\(42\cdot (-17)+60h=702\\ 60h=702+714 \)
Adam and Barb sold the hardbacks for 23.60 each, gave away the paperbacks and gave 0.17 off each paperback.