Pi(e) Day Problem ( Sorry that I was too late )
Probability
Level
1
1/3.14 of a pie costs $3.14 in a bakery. Amanda decided to take 3.14 whole pies for a party. What is the whole cost of the pies with a 8% tax ( In 2 decimal places )?
The answer is 33.43.
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1 solution
We need 3.14 of 1/3.14s to have a whole pie. So this means 1/3.14 X 3.14 = 1. We also have to change the cost for the pie like this: 3.14 X 3.14 = 3.14^(2) = 9.8596 Next, we multiply the whole pie by 3.14, including the price: 1 X 3.14 = 3.14 9.8596 X 3.14 = 30.959144 Now for the tax: 8% = 0.08 30.959144 X 0.08 = 2.47673152 30.95 + 2.47 = 33.42 And also for the other decimal places, we have to add $0.01 to the cost to get $33.42.