Question

adriana goes for a run most afternoons. this graph shows how many miles she ran on different days. run lengths (a dot plot with xs at 1/2, 1, 1 1/2, 2, 2 1/2; 3 xs at 1/2, 1 x at 1, 4 xs at 1 1/2, 2 xs at 2, 3 xs at 2 1/2) if you combine all of the miles on days when adriana ran exactly 2 1/2 miles, how many miles did she run in all? options: 3 miles, 6 1/2 miles, 7 miles, 7 1/2 miles

Explanation:

Step1: Count X's at \(2\frac{1}{2}\)

At \(2\frac{1}{2}\) miles, there are 3 X's (each X represents 1 day of running \(2\frac{1}{2}\) miles).

Step2: Calculate total miles

Total miles = \(2\frac{1}{2} \times 3\). Convert \(2\frac{1}{2}\) to improper fraction: \(\frac{5}{2}\). Then \(\frac{5}{2} \times 3 = \frac{15}{2} = 7\frac{1}{2}\) miles.

Answer:

\(7\frac{1}{2}\) miles (the option: \(7\frac{1}{2}\) miles)