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The table shows the grading scale for Ms. Gray's social studies class.


A 90%–100%
B 80%–89%
C 70%–79%


Part A: Pick a number between 14 and 19. This number will represent how many points you earned. If you have a pop quiz worth a total of 20 points, using the number you selected, calculate the percentage you earned on the test. Show each step of your work.

Part B: Based on the percentage found in Part A, would you earn a grade of A, B, or C using the grading scale provided? Explain your answer.

Answer :

Part A:

I'll chose 15.

15/20 = 0.75

Convert 0.75 to a percentage by multiply by 100.

0.75 * 100 = 75%

The grade earned is a 75%.

Part B:

75% would be a C. That's because 75% falls in the range of 70% - 79% which is a C.

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