Kimberly had some money. If she buys 6 mini cupcakes, she will have $10 left. If she buys 9 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.
6 M + 10 = 9 M + 1
9 M - 6 M = 10 - 1
3 M = 9
1 M = 9 ÷ 3 = 3
Cost of each mini cupcake = $3
(b)
Total amount that Kimberly had
= 9 x 3 + 1
= 27 + 1
= $28
Answer(s): (a) $3; (b) $28