Solve. Enter your answer as a mixed number. The driving distance from Alex's house to the museum is 6 9 10 miles. What is the round-trip distance? The round-trip distance is miles.

13.8 miles

Step-by-step explanation:

The driving distance from Alex's house to the museum is miles

Since the distance from his house to the museum does not change, his trip back is also miles.

The Round-Trip Distance is the distance to and from the museum.

To determine this, there ate two approaches.

Approach 1

Approach 2

The round trip distance is 13.8 miles.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have