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2 years ago

Mr. Jones grades 12 exams

Mathematics

2 answers:

aniked [119]2 years ago

5 0

Answer:

8 hours

Step-by-step explanation:

12/2= 6
He grades 6 exams per hour
48/6= 8
it would take 8 hours to grade 48 exams

Bonus:
it takes him 10 minutes to grade an exam. That doesnt matter for this question but it's good 2 know

Ad libitum [116K]2 years ago

3 0

Answer:

8 hours

Step-by-step explanation:

To solve this it seems you need to set up a proportion.

12/2=48/x

cross multiply the 2 and 48.

2•48=96.

divide by the remaining number to get x.

96/12=8.

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Zarrin [17]

Answer:

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-4t-4=20 (move constant to the right)

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