Petra 5

Petra ran 7/10 of a mile on Friday, 2.3 miles on Saturday, and 1/5 of a mile on Sunday. How many miles did she run over the past 3 days?

Final Answer:

x =  3.2 mi

Step-by-step explanation:

$$\begin{gathered} a=\frac{7}{10}=0.7\text{mi} \\ b=2.3\text{mi} \\ c=\frac{1}{5}=0.2\text{mi} \\ x=a+b+c=0.7+2.3+0.2=\frac{16}{5}\text{mi}=3.2\text{mi} \end{gathered}$$

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