Question

Every week Mary swims 2.5 miles on Monday, 3 miles on Wednesday, and 4.4 miles on Friday. How many miles will Mary swim in 4 weeks?

Answer 1

The miles Mary will swim in a week is,

$N=2.5+3+4.4=9.9$

Then, the miles Mary will swim in 4 weeks is,

$\begin{gathered} T=4N \\ T=4\times9.9 \\ T=39.6\text{ miles} \end{gathered}$

Therefore, Mary will swim 39.6 miles in 4 weeks.