Emily saved some of her school pocket money for 3 days. She saved $9 on the first day. For the remaining 2 days, she saved $0.40 more than the previous day.
- How much money did she save in 3 days?
- Emily then spent all her savings on 3 identical staplers. How much did each stapler cost?
(a)
Amount that Emily saved on the first day = $9
Amount that Emily saved on the second day = $9 + $0.40
Amount that Emily saved on the third day = $9 + $0.40 + $0.40
Total amount the Emily saved in 3 days
= 3 x 9 + 3 x 0.40
= 27 + 1.20
= $28.20
(b)
Cost of each stapler
= 28.20 ÷ 3
= $9.40
Answer(s): (a) $28.20; (b) $9.40