Question

Melissa exercises for 20 minutes every day. She decides to increase her daily exercise time by 5 minutes each week. However, according to her doctor’s orders, she can spend no more than 45 minutes a day exercising. For how many weeks can Melissa increase her exercise time this way?
A. at least 13 weeks
B. at most 5 weeks
C. at most 13 weeks
D. at least 5 weeks

Answer 1

Let, the number of weeks = x
Inequality formed would be: 20 + 5x ≥ 45

Subtract 20 from both sides, 
5x ≥ 25

Now, divide by 5, 
x ≥ 5

In short, Your Answer would be Option B) "At most 5"

Hope this helps!

Answer 2

 5 10 15 20 25 30 35 40 45 50 55 60 65 70