The distance time graph represents a journey made by Joe what did you do at 10 minute at what speed was Joe moving for the last 30 minutes of the journey

a)At 10min= Jo arrived at the destination and prepare to return.

b)8km/h

Step-by-step explanation:

speed = distance/time  30/3.75=8

Hope this helps

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4