Which is a unit rate?
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Question↓

Which is a unit rate?

Answer↓

The Correct Answer Is 6 hours: 1 Book

unit rate. • a comparison of two measurements in which. one of the terms has a value of 1.

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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

i think the answer is true

step-by-step explanation: