Hassan paid $18.00 to buy 4 paperback books and 2 hardcover books. Aviv paid $36.25 to buy 5 paperback books and 5 hardcover books. The prices for all the hardcover books were the same, and the prices for all the paperback books were the same. What was the price of a hard cover book?

Guest Mar 7, 2020

#1**+1 **

Hassan 4p+2h=18.00

Aviv 5p+5h=36.25 two equations and two unknowns.....solve for h and p

multiply first equation by - 1.25 to get

-5p -2.5h = -22.5 and add this to the second equation to get

2.5 h = 13.75

h = 5.50

then sub into one of the equations

5p + 5(5.5) = 36.25 p =1.75

ElectricPavlov Mar 7, 2020