5 On a three-day backpacking trip, Jacob hiked 3 miles the the second day, and \( \frac{1}{3} \) of the total distance on the third de miles did he hike altogether?
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To find the total distance Jacob hiked altogether, let's denote the total distance as \( D \). According to the problem, Jacob hiked \( 3 \) miles on the second day and \( \frac{1}{3} \) of the total distance \( D \) on the third day. Therefore, the distance he hiked on the third day is \( \frac{1}{3}D \). Now, since he hiked for three days, we can establish the equation for total distance: \[ D = \text{(distance on Day 1)} + 3 + \frac{1}{3}D \] Assuming he hiked \( d_1 \) miles on the first day, we get: \[ D = d_1 + 3 + \frac{1}{3}D \] To isolate \( D \), multiply the entire equation by \( 3 \) to eliminate the fraction: \[ 3D = 3d_1 + 9 + D \] Now, rearranging gives us: \[ 2D = 3d_1 + 9 \] To find \( D \), we'll need to know how far he hiked on the first day, which is not provided here. However, if you knew the hiking distance on the first day, you could easily solve for \( D \).