A toy car costs $80.
It costs 8 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 3 toy cars and 10 dolls cost?
Choose the cheaper item to be 1 u.
The toy car costs 8 times as much as the doll.
The doll is cheaper.
Cost of the toy car = 8 u = $80
Cost of the doll = 1 u
(a)
Cost of the doll
= 80 ÷ 8
= $10
(b)
Cost of the toy car more than the doll
= 8 u - 1 u
= 7 u
= 7 x 10
= $70
(c)
Cost of 1 toy car and 1 doll
= 8 u + 1 u
= 9 u
= 9 x 10
= $90
(d)
Cost of 3 toy cars and 10 dolls
= 3 x 8 u + 10 x 1 u
= 24 u + 10 u
= 34 u
= 34 x 10
= $340
Answer(s): (a) $10; (b) $70; (c) $90; (d) $340