A drawer is filled with 9 black shirts, 6 white shirts, and 5 gray shirts. One shirt is chosen at random from the drawer. Find the probability that it is not a white shirt.
Write your answer as a fraction in simplest form.

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

what is the model?

step-by-step explanation:

- click here to get an answer to your question ✍ 75 i will mark one of the angles formed by two

step-by-step explanation: