125k views
1 vote
Ms. Hamby gave a quiz. Two students’ work and the answer key are shown. Ms. Hamby accepts equivalent answers in any form.

Based on Ms. Hamby’s answer key, how many questions did Student A answer correctly?
Explain your response.

Based on Ms. Hamby’s answer key, how many questions did Student B answer correctly? Explain your response.

Ms. Hamby gave a quiz. Two students’ work and the answer key are shown. Ms. Hamby-example-1
User Giel
by
7.3k points

2 Answers

7 votes

Answer:

And also the verified person is right because if we divided the answer would be different if we dont multiply to see if student a or b get there answers right.

Explanation:

User Ramesh Srirangan
by
7.3k points
2 votes

Answer:

Student A and Student B both answered 2 questions correctly.

See explanation below

Explanation:

Note: that answers in the form:


(a)/(-b)=(-a)/(b)=-(a)/(b)

ARE ALL EQUIVALENT.

First of all, 4/5 is equivalent to 0.8 if we do long division.

and 19/20 is 0.95 if we do long division.

Now, Student A:

Both of the fractions are correct and the negative sign is equivalent and makes the answer correct, so both are correct.

For Student B:

Similarly, both answers are correct for this student as well, looking at the equivalence we showed first.

Also, "-" (negative) in front of the parenthesis and inside parenthesis here doesn't matter.

Hence,

Student A and Student B both answered 2 questions correctly.

User Arcoutte
by
8.2k points