Question

Duane scored 9 out of 11 on his Science homework and 17 out of 20

on his History homework. He concluded that he scored higher in Science
because he got only two answers wrong while in History he got three
answers wrong. Find Duane's percentage score to determine if his
conclusion is accurate​

Answer 1

Duane's conclusion is wrong

Explanation:

We can calculate the percentage scores by dividing the number of answers right by the total number of questions:

Science homework: 9/11 = 0.82, or 82%

History homework: 17/20 = 0.85, or 85%

So, Duane's conclusion is wrong because his percentage score for history was higher than the one for science.

Answer 2

the answer is not accurate.

Explanation:

percentage of 9/11 is 81.81818181(science)

percentage of 17/20 is 85(history)

better score on history