The cost of an ice-cream cone is $5.The cost of a box of ice-cream is $3 more than 6 times the cost of the ice-cream cone. If Tom use $C to buy x ice-cream cone and y boxes of ice-cream ,
(a) write down the formula for calculating the total cost $C.
(b) If x=5 and y=2, find the total cost.
Mathematics
2012-08-08 11:40 pm
回答 (1)
2012-08-09 11:38 am
✔ 最佳答案
(a)C = 5x + (6*5 + 3)y
C = 5x + 33y
(b)
When x = 5 and y = 2 :
C = 5(5) + 33(2)
C = 91
Total cost = $91
參考: andrew
收錄日期: 2021-04-13 18:53:57
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