A toy car costs $140.
It costs 7 times as much as a doll.
- How much is the doll?
- How much is the toy car more than the doll?
- How much will 1 toy car and 1 doll cost?
- How much will 2 toy cars and 8 dolls cost?
Choose the cheaper item to be 1 u.
The toy car costs 7 times as much as the doll.
The doll is cheaper.
Cost of the toy car = 7 u = $140
Cost of the doll = 1 u
(a)
Cost of the doll
= 140 ÷ 7
= $20
(b)
Cost of the toy car more than the doll
= 7 u - 1 u
= 6 u
= 6 x 20
= $120
(c)
Cost of 1 toy car and 1 doll
= 7 u + 1 u
= 8 u
= 8 x 20
= $160
(d)
Cost of 2 toy cars and 8 dolls
= 2 x 7 u + 8 x 1 u
= 14 u + 8 u
= 22 u
= 22 x 20
= $440
Answer(s): (a) $20; (b) $120; (c) $160; (d) $440