Eduardo bought 2-liter sports drink for soccer practice. During practice, Eduardo drank 250 milliliters of the sports drink. Then he drank another 1/2 liter of the drink after practice. How many milliliters of the sports drink did Eduardo have left?

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

my guess is

step-by-step explanation:

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