Riordan wants to buy some notebooks of the same price. If she buys 4 notebooks, she will have $11.70 left. If she buys 10 notebooks, she will have no money left.
- How much does each notebook cost?
- How much does Riordan have?
(a)
Cost of 6 notebooks = $11.70
Cost of each notebook
= 11.70 ÷ 6
= $1.95
(b)
Since Riordan will have no money left if she buys 10 notebooks, the amount that she has is the cost of 10 notebooks.
Amount that Riordan has
= 10 x 1.95
= $19.50
Answer(s): (a) $1.95; (b) $19.50