Respuesta :
Answer:
Step-by-step explanation:
Total number of questions in the test is 20.
Total number of questions that Alyssa answered correctly is 16.
The percentage of questions that she answered correctly would be
16/20 × 100 = 80%
To get an A, she needs to answer 90% of the questions correctly. Let x represent the number of questions that she needs to answer correctly to get an A. Therefore,
x/20 × 100 = 90
100x = 20 × 90 = 1800
x = 1800/100 = 18
She would need to answer 18 questions correctly to get an A
Alyssa's friend Jessie answered three times more questions correct than incorrect. This means that for every 3 correct answers, she had 1 wrong answer. For 15 correct answers ,she would get 5 wrong answers. Therefore, she got fewer correct answers than Alyssa.
Her percentage is
15/20 × 100 = 75%
Alyssa got a higher percentage of the test questions correct.
Answer:
Below.
Step-by-step explanation:
a. She did not get an A because 16 out of 20 = 80%.
b. She needed 18 correct answers to get an A.
c. Jessie scored 3 * correct more than incorrect which means she answered 15 correctly and 5 incorrectly = 75% correct.
So Alyssa got a higher percentage correct.
