Fill in the blanks.
Abraham spends
13 of his money on 2 beads and 4 pens.
Each pen costs five times as much as each bead.
Let the price of 1 bead be 1 u.
- Cost of 1 pen = _____ u
- Amount that Abraham has spent = _____ u
- Amount that Abraham has left = _____ u
- Amount that Abraham has at first = _____ u
(a)
Change X times into units.
Cost of 1 bead = 1 u
Cost of 1 pen = 5 x 1 u = 5 u
(b)
Amount that Abraham has spent
= 2 x 1 u + 4 x 5 u
= 2 u + 20 u
= 22 u
(c)
Fraction of the money he has left
= 1 -
13 =
23 13 of his money = 22 u
23 of his money = 2 x 22 u = 44 u
Amount that Abraham has left = 44 u
(d)
Amount that Abraham has at first
= 22 u + 44 u
= 66 u
Answer(s): (a) 5; (b) 22; (c) 44; (d) 66