Your house is at point [tex]$C$[/tex]. A post office is located directly west of your house at point [tex]$D$[/tex]. Let point [tex]$E$[/tex] represent your school, which is directly west of the post office.

Find the distance from your house to your school if [tex]$CD=1.7$[/tex] miles and [tex]$DE=2.4$[/tex] miles.

A. 3.1 miles

B. 4.1 miles

C. 4.3 miles

D. 5.1 miles



Answer :

To determine the distance from your house at point [tex]\( C \)[/tex] to your school at point [tex]\( E \)[/tex], we need to add the distances between the given points along the route.

You are provided with the following distances:
- The distance from your house at point [tex]\( C \)[/tex] to the post office at point [tex]\( D \)[/tex] is [tex]\( CD = 1.7 \)[/tex] miles.
- The distance from the post office at point [tex]\( D \)[/tex] to the school at point [tex]\( E \)[/tex] is [tex]\( DE = 2.4 \)[/tex] miles.

Since point [tex]\( D \)[/tex] is directly on the path from point [tex]\( C \)[/tex] to point [tex]\( E \)[/tex], we can find the total distance from point [tex]\( C \)[/tex] to point [tex]\( E \)[/tex] by adding the two given distances. This means that the total distance [tex]\( CE \)[/tex] is calculated as follows:

[tex]\[ CE = CD + DE \][/tex]

Given:
[tex]\[ CD = 1.7 \text{ miles} \][/tex]
and
[tex]\[ DE = 2.4 \text{ miles} \][/tex]

Adding these distances gives:
[tex]\[ CE = 1.7 \text{ miles} + 2.4 \text{ miles} = 4.1 \text{ miles} \][/tex]

Therefore, the distance from your house to your school is [tex]\( 4.1 \)[/tex] miles.

So, the correct answer is:
[tex]\[ \boxed{4.1 \text{ miles}} \][/tex]

This corresponds to option B in the given choices.