The average human walks 2.5 miles in an hour. How long would it take to walk across the crater? The rover travels at .1 miles an hour. How long would it take to drive around the edge of the crater?

d

gimmee one of those gold crowns!

~coco

9 x 8 divided by (5-3)=36

5 pm

step-by-step explanation:

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