A toy car costs $180.
It costs 9 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 5 dolls cost?
Choose the cheaper item to be 1 u.
The toy car costs 9 times as much as the doll.
The doll is cheaper.
Cost of the toy car = 9 u = $180
Cost of the doll = 1 u
(a)
Cost of the doll
= 180 ÷ 9
= $20
(b)
Cost of the toy car more than the doll
= 9 u - 1 u
= 8 u
= 8 x 20
= $160
(c)
Cost of 1 toy car and 1 doll
= 9 u + 1 u
= 10 u
= 10 x 20
= $200
(d)
Cost of 2 toy cars and 5 dolls
= 2 x 9 u + 5 x 1 u
= 18 u + 5 u
= 23 u
= 23 x 20
= $460
Answer(s): (a) $20; (b) $160; (c) $200; (d) $460