Question

ERROR ANALYSIS: Below is a bonus question that appeared on the algebra test and a student's response.

The ratio of junior varsity members to varsity members on the track team is 3:5. There are 24 members on the team. Write a proportion to find the number of junior varsity members.
3/5 = x/24

The student did not receive the bonus points. Why is this proportion incorrect?

Answer 1

he did not actually solve for the number of juniors

Answer 2

Should it be 3/8 = x/24

Answer 3

No the proportion is incorrect it doesn't say to solve it.

Answer 4

3 out of 5 not 3 out of 8

Answer 5

oh

Answer 6

But then why is 3/5 = x/24 incorrect.

Answer 7

going for coffee, nvm, disregard

Answer 8

3/8 because if there is 3 juniors and 5 varsity then the total is 8.

Answer 9

There are two types
junior varsity
and varsity
together they add up to 24 members

they give you the ratio of junior : varsity = 3:5
if you want the ratio of junior to total, you write 3: 8 (where 8= 3+5)
now you can say
x/24= ⅜

Answer 10

phi so it is 3/8 =x/24

Answer 11

yes, you got it correct.