Problema Solution
Raina brought 9simmilar notebooks. She gave the cashier $10 and received change of $5.05. What was the cost 1 notebook
Answer provided by our tutors
Let 'x' represent the cost of a notebook, then 9 are purchased with $5.05 change:
10=5.05+9x
x=0.55
So each notebook would cost 55 cents, $0.55.