Nicole paid $18 for one sweater and one cardigan. The cardigan costs 5 times as much as the sweater.
- How much did the sweater cost?
- How much more did the cardigan cost than the sweater?
(a)
Cost of the sweater = 1 u
Cost of the cardigan = 5 u
Total cost of the sweater and the cardigan
= 1 u + 5 u
= 6 u
6 u = 18
1 u = 18 ÷ 6 = 3
Cost of the sweater = $3
(b)
Cost of the cardigan more than the sweater
= 5 u - 1 u
= 4 u
= 4 x 3
= $12
Answer(s): (a) $3; (b) $12