Zoe had some money. If she buys 12 mini cupcakes, she will have $7 left. If she buys 14 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.
12 M + 7 = 14 M + 1
14 M - 12 M = 7 - 1
2 M = 6
1 M = 6 ÷ 2 = 3
Cost of each mini cupcake = $3
(b)
Total amount that Zoe had
= 14 x 3 + 1
= 42 + 1
= $43
Answer(s): (a) $3; (b) $43