Describe in your own words what it means to say that integers are closed under addition? (please help I don't get this question)
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Answer:
Sam sliced the pie into 15 equal slices
Step-by-step explanation:
Given : Sam cut a pie into equal slices.There are only three slices left.The angle measure for the three slices is 72 degrees.
We have to determine the number of slices that the Sam cuts.
Sam cuts a pie and pie is in shape of circle therefore total angle measure is 360°.
Since, Given the angle measure for the three slices is 72 degrees.
So, The angle measure for the one slices is degrees.
Since, Pie is cut into equal slices.
So, measure of each slice must be equal.
So let he cut x slices of pie of 24°
So , total measure of x slices must be equal to 360°
24 · x = 360
x = 15
Thus, Sam sliced the pie into 15 equal slices