Charlotte and Riley walked 6/10 of a mile to school one day, and then after school they walked 3/8 of a mile to the store. From the store back home was another 2/5 of a mile. How far did the girls walk in all?

The girls walked miles.

Step-by-step explanation:

Given:  Distance from home to school = mile

Distance from school to store = mile

Distance from store to home = miles

Total distance =

=   [L.C.M.(10,8,5)=40]

=

=

=  miles

Hence, The girls walked 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

246

step-by-step explanation: