Mason wants to buy some pencils of the same price. If she buys 5 pencils, she will have $7.10 left. If she buys 9 pencils, she will short of $1.30.
- How much does each pencil cost?
- How much does Mason have?
(a)
Difference in the number of pencils
= 9 - 5
= 4
Amount that Mason needs to buy 4 pencils
= 7.10 + 1.30
= $8.40
Cost of each pencil
= 8.40 ÷ 4
= $2.10
(b)
Amount that Mason has
= 5 x 2.10 + 7.10
= $17.60
Answer(s): (a) $2.10; (b) $17.60