Question

Alyssa took a math test with 20 questions and she answered 16 questions correctly. In order get an A, she needs to answer at least 90% of the questions correctly.
A. Did Alyssa get an A on this math test? Explain.
B. How many questions would Alyssa need to answer correctly in order to get an A?
C. On the same exam, Alyssa's friend Jessie answered three times more questions correct than incorrect. Who got higher percentage of the test questions correct, Alyssa or Jessie? Please answer C for me

Answer 1

A. Alyssa did not get an A on the math test but rather a B- due to only getting 16 out of the 20 problems right. This can be found out by dividing the amount correct over the total amount of problems.

B. In order for Alyssa to get an A or 90% on her math test she would have had to get two more questions right to have a score of 18 out of 20.

C. In order to figure this question out you have to think that with every incorrect answer that Jessie answered she got three correct along with the one incorrect. By going with that information it can be figured that Jessie's score is 15 correct answers and 5 incorrect information if you go by the ratio 3:1 then go up tell the sides equal up to a total of 20 after being added. So Jessie's score again was 15 out of 20.

Answer 2

Answer:

We know that the test has 20 questions in total, and she needs 90% correctly. So, we need to find the 90% of 20:

$90 \%(20)=\frac{90}{100}20=18$

This means that Alyssa needs to answer at least 18 question correctly to get an A.

A.

Base on this result, we can say that Alyssa got an A.

B.

Alyssa needs to answer 18 question to get an A.

C.

Jessie answer three times more questions correct than incorrect.

C=3(I)

C+I=20

3(I)+I=20

4(I)=20

I=20/4=5

C=3(5)=15

According to this result, Jessie only got 15 questions correct.

Therefore, Alyssa got higher percentage of the questions correct.