Fill in the blanks.
Alfie spends
110 of his money on 2 cards and 3 beads.
Each bead costs four times as much as each card.
Let the price of 1 card be 1 u.
- Cost of 1 bead = _____ u
- Amount that Alfie has spent = _____ u
- Amount that Alfie has left = _____ u
- Amount that Alfie has at first = _____ u
(a)
Change X times into units.
Cost of 1 card = 1 u
Cost of 1 bead = 4 x 1 u = 4 u
(b)
Amount that Alfie has spent
= 2 x 1 u + 3 x 4 u
= 2 u + 12 u
= 14 u
(c)
Fraction of the money he has left
= 1 -
110 =
910 110 of his money = 14 u
910 of his money = 9 x 14 u = 126 u
Amount that Alfie has left = 126 u
(d)
Amount that Alfie has at first
= 14 u + 126 u
= 140 u
Answer(s): (a) 4; (b) 14; (c) 126; (d) 140