Henry wants to buy some pens of the same price. If she buys 7 pens, she will have $7.10 left. If she buys 9 pens, she will have no money left.
- How much does each pen cost?
- How much does Henry have?
(a)
Cost of 2 pens = $7.10
Cost of each pen
= 7.10 ÷ 2
= $3.55
(b)
Since Henry will have no money left if she buys 9 pens, the amount that she has is the cost of 9 pens.
Amount that Henry has
= 9 x 3.55
= $31.95
Answer(s): (a) $3.55; (b) $31.95