Tammy paid $40 for one jacket and one skirt. The skirt costs 3 times as much as the jacket.
- How much did the jacket cost?
- How much more did the skirt cost than the jacket?
(a)
Cost of the jacket = 1 u
Cost of the skirt = 3 u
Total cost of the jacket and the skirt
= 1 u + 3 u
= 4 u
4 u = 40
1 u = 40 ÷ 4 = 10
Cost of the jacket = $10
(b)
Cost of the skirt more than the jacket
= 3 u - 1 u
= 2 u
= 2 x 10
= $20
Answer(s): (a) $10; (b) $20