Flynn received $2 from his father in the 1st week of school and $4 in the 2nd week. Each week, he receives $2 more than the week before.
- How much money did he received in the 5th week?
- In which week did he receive $28?
(a)
Amount that Flynn received on 1st Week = $2
Amount that Flynn received on 2nd Week = $4
Formula:
Amount received each week = 2 + (Week number - 1) x $2
Amount received on Week 5
= 2 + (5 - 1) x 2
= 2 + 4 x 2
= 2 + 8
= $10
(b)
Week number that Flynn received $28
= [(28 - 2) ÷ 2] + 1
= (26 ÷ 2) + 1
= 13 + 1
= 14
Answer(s): (a) $10; (b) 14