Three sisters spent a total of $70. Jade spent $7 more than Jane and Emma spent $5 more than Jade.
- How much money did Jane spend?
- How much money did Emma spend?
(a)
Amount that Jane spent = 1 u
Amount that Jade spent = 1 u + 7
Amount that Emma spent = 1 u + 7 + 5 = 1 u + 12
Total amount that they spent
= 1 u + 1 u + 7 + 1 u + 12
= 3 u + 19
3 u + 19 = 70
3 u = 70 - 19
3 u = 51
1 u = 51 ÷ 3 = $17
Amount that Jane spent
= 1 u
= 17
(b)
Amount that Emma spent
= 1 u + 12
= 17 + 12
= $29
Answer(s): (a) $17; (b) $29
