Cost each book: C=?
C=(315-18)/9
C=(297)/9
C=33
Answer:
Each book cost 33
When you solve proportions, you have to cross multiply.
9 x
--- = --- Multiply each numerator by the opposite denominator.
11 22
(9)(22) = 11x Then, multiply.
198 = 11x Then, divide.
18 = x
It equal 12 have a nice day
Answer:
3 rolls of dimes and 8 rolls of nickels
hope it helps!!!!!!!!! :]
The correct answer is (2) 150