Fill in the blanks.
Adrian spends
14 of his money on 5 beads and 4 pencils.
Each pencil costs twice as much as each bead.
Let the price of 1 bead be 1 u.
- Cost of 1 pencil = _____ u
- Amount that Adrian has spent = _____ u
- Amount that Adrian has left = _____ u
- Amount that Adrian has at first = _____ u
(a)
Change X times into units.
Cost of 1 bead = 1 u
Cost of 1 pencil = 2 x 1 u = 2 u
(b)
Amount that Adrian has spent
= 5 x 1 u + 4 x 2 u
= 5 u + 8 u
= 13 u
(c)
Fraction of the money he has left
= 1 -
14 =
34 14 of his money = 13 u
34 of his money = 3 x 13 u = 39 u
Amount that Adrian has left = 39 u
(d)
Amount that Adrian has at first
= 13 u + 39 u
= 52 u
Answer(s): (a) 2; (b) 13; (c) 39; (d) 52