Ronna answered 18 of the 20 questions on her second math test correctly. On the first test, she had answered only 15 of 20 quest
ions correctly. What was the percent increase in her score from her first test to the second test? A. 15% B. 35% C. 75% D. 90
1 answer:
Answer:
A: 15%
Step-by-step explanation:
First test:
15 ÷ 20 = 0.75
0.75 * 100 = 75%
Second Test:
18 ÷ 20 = 0.9
0.9 * 100 = 90%
90% - 75% = 15%
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