At a used bookstore, the price of a hardcover book is three times the price of a paperback book. If 40 hardcover books were sold for a total of $480 and the combined sales of hardcover
and paperback books totaled $600, how many paperback books were sold?

A) 10
B) 12
C) 30
D) 40

rick would give her the best deal as he will charge $8.88 per hour

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

no

step-by-step explanation:

answer