SOLUTION: point r is located at the origin. point s is located at (20,0). point t is the midpoint of segment rs. point u is the midpoint of segment ts. find the distance of rt + us.

Algebra ->  Length-and-distance -> SOLUTION: point r is located at the origin. point s is located at (20,0). point t is the midpoint of segment rs. point u is the midpoint of segment ts. find the distance of rt + us.      Log On


   

Question 1010049: point r is located at the origin. point s is located at (20,0). point t is the midpoint of segment rs. point u is the midpoint of segment ts. find the distance of rt + us.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This can be done with just one single number line.

Where is t? Exact middle of 0 and 20; which means, t is at 10.

Brief summary of some values:
system%28t=10%2Cs=20%2Cu=midpointOf%2Ats%29

Where is u?
%2810%2B20%29%2F2=30%2F2=15.

u is at 15.

Some care with the final question part. This seems to ask for the sum of distance. r to t is 10 units. u to s goes from point 15 to point 20, a distance of 5 units.. The question seems to ask for 10%2B5=15.