A food manufacturer produces a cookie with the cost of the main ingredients as follows:
Egg……………….$0.10 Flour……………...$0.08 Butter……………..$0.12
If the cost of egg increases by 26%, that of flour decreases by 10% and that of butter increases by 35%, find the new total cost of the main ingredients for producing a box of 40 cookies.
Percentage question25
2006-11-25 10:11 pm
回答 (1)
2006-11-25 11:07 pm
✔ 最佳答案
new cost of the main ingredientsegg increases by 26%
0.10 * (1 + 26%) = 0.126
flour decreases by 10%
0.08 * (1 - 10%) = 0.072
butter increases by 35%
0.12 * (1 + 35%) = 0.162
new total cost of 40 cookies
(0.126 + 0.072 + 0.162) * 40
= 0.36 * 40
= 14.4
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