Fill in the blanks.
Asher spends
19 of his money on 3 pencils and 5 beads.
Each bead costs thrice as much as each pencil.
Let the price of 1 pencil be 1 u.
- Cost of 1 bead = _____ u
- Amount that Asher has spent = _____ u
- Amount that Asher has left = _____ u
- Amount that Asher has at first = _____ u
(a)
Change X times into units.
Cost of 1 pencil = 1 u
Cost of 1 bead = 3 x 1 u = 3 u
(b)
Amount that Asher has spent
= 3 x 1 u + 5 x 3 u
= 3 u + 15 u
= 18 u
(c)
Fraction of the money he has left
= 1 -
19 =
89 19 of his money = 18 u
89 of his money = 8 x 18 u = 144 u
Amount that Asher has left = 144 u
(d)
Amount that Asher has at first
= 18 u + 144 u
= 162 u
Answer(s): (a) 3; (b) 18; (c) 144; (d) 162