Jamie wants to buy some notebooks of the same price. If she buys 5 notebooks, she will have $5.20 left. If she buys 7 notebooks, she will short of $2.30.
- How much does each notebook cost?
- How much does Jamie have?
(a)
Difference in the number of notebooks
= 7 - 5
= 2
Amount that Jamie needs to buy 2 notebooks
= 5.20 + 2.30
= $7.50
Cost of each notebook
= 7.50 ÷ 2
= $3.75
(b)
Amount that Jamie has
= 5 x 3.75 + 5.20
= $23.95
Answer(s): (a) $3.75; (b) $23.95