Tina had some money. If she buys 4 mini cupcakes, she will have $7 left. If she buys 6 mini cupcakes, she will have $1 left.
- How much does each mini cupcake cost?
- How much money does she have?
(a)
Let 1 M be the price of 1 mini cupcake.
4 M + 7 = 6 M + 1
6 M - 4 M = 7 - 1
2 M = 6
1 M = 6 ÷ 2 = 3
Cost of each mini cupcake = $3
(b)
Total amount that Tina had
= 6 x 3 + 1
= 18 + 1
= $19
Answer(s): (a) $3; (b) $19