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Example Question #2 :Circles
Two pizzas are made to the same dimensions. The only difference is that Pizza 1 is cut into pieces at 30° angles and Pizza 2 is cut at 45° angles. They are sold by the piece, the first for $1.95 per slice and the second for $2.25 per slice. What is the difference in total revenue between Pizza 2 and Pizza 1?
Possible Answers:
$2.70
$0
–$5.40
$5.40
–$2.70
Correct answer:
–$5.40
解释:
First, let's calculate how many slices there are per pizza. This is done by dividing 360° by the respective slice degrees:
披萨1:360/30 = 12 slices
Pizza 2: 360/45 = 8 slices
Now, the total amount made per pizza is calculated by multiplying the number of slices by the respective cost per slice:
披萨1:12 * 1.95 = $23.40
Pizza 2: 8 * 2.25 = $18.00
披萨2和披萨1的区别是如此represented by: 18 – 23.40 = –$5.40
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