Gabriel wants to buy some notebooks of the same price. If she buys 5 notebooks, she will have $5.30 left. If she buys 7 notebooks, she will short of $2.40.
- How much does each notebook cost?
- How much does Gabriel have?
(a)
Difference in the number of notebooks
= 7 - 5
= 2
Amount that Gabriel needs to buy 2 notebooks
= 5.30 + 2.40
= $7.70
Cost of each notebook
= 7.70 ÷ 2
= $3.85
(b)
Amount that Gabriel has
= 5 x 3.85 + 5.30
= $24.55
Answer(s): (a) $3.85; (b) $24.55