On average, Indigo drinks \frac{2}{5} 5 2 ​ of a 10-ounce glass of water in \frac{4}{5} 5 4 ​ of an hour. How much water does she drink, in glasses per hour? Enter your answer as a whole number, proper fraction, or mixed number 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

idk idk idk idk idk

step-by-step explanation:

15.36 per mile

but forgot to round

i am pretty sure