Question

Jenna ran 2 7/8 kilometers each day for a week. How far did she run in all? Give in estimate, then find the actual amount. Show your work.

Answer 1

Answer:

Therefore Jenna ran 20 $\frac{1}{8}$  kilometers in a week.

Step-by-step explanation:

Jenna ran 2 7/8 kilometers each day for a week. How far did she run in all?

We can simply use proportion to solve this;

But we need to know that 7 days = 1 week

If Jenna ran 2 $\frac{7}{8}$  kilometers each day, we are now going to find how many kilometers she run in a week(7 days)

Let x be the total distance she ran in a week

2 $\frac{7}{8}$  kilometers  =  1 day

   x                      = 7 day

 

Cross-multiply

x  = 2 $\frac{7}{8}$   ×  7

   = $\frac{23}{8}$   ×   7

    =$\frac{161}{8}$

    =20 $\frac{1}{8}$  kilometers

Therefore Jenna ran 20 $\frac{1}{8}$  kilometers in a week.