Answer:
40 minutes.
Step-by-step explanation:
Hi there! I'm glad I was able to help you solve this problem!
We are given that Alison does 8 math problems in TWO minutes.
Considering this, we can conclude that Alison can do FOUR math problems in ONE minute. (That's pretty impressive, if you ask me!)
To recap how I solved this, I put 8/2 in simplest form, which left me with 4/1.
NOTE: Per 1 minute, Alison completes 4 problems.
By doing mental math myself, I concluded that my answer was 40 minutes for Alison to complete 160 math problems. I had to check it, though!
The GCF (Greatest Common Factor) of 160 and 40 was 40.
I divided both terms by the GCF, which is again 40.
160 ÷ 40 = 4
40 ÷ 40 = 1
This brings us back to our improper fraction in simplest form 4/1!
Therefore, Alison will take about 40 minutes to complete a set of 160 problems.
I hope this helped you out! Comment below if I can help you with anything else! :)