Answer:
20 minutes
Step-by-step explanation:
From the given information, we can see that:
- 4 minutes burns 20 calories, and
- 8 minutes burns 40 calories.
We can see the pattern that minutes x 5 = number of calories.
4*5 =20
8*5=40
So for the last line, what we need is a number which multiplied by 5 gives us 100. Let that number be [tex]x[/tex]:
[tex]x*5=100\\5x=100\\x=\frac{100}{5}=20[/tex]
So you would need to run 20 minutes.
