The formula d = 0.5gt determines the distance, d, that an object has fallen during the time, t. In the same formula, g represents the acceleration due to
gravity. Which formula will find the time it will take an object to fall if g and dare
both known?

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

if she was to only spend a dollar she can get 1lb

step-by-step explanation:

fd

step-by-step explanation: