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imgraciebaker
12.05.2021 •
Mathematics
Suppose the measure of angle 4 is 68°. What is the measure of angle 3? Describe how you found it.
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Ответ:
12(20) = 240
the problem states that we have to increase each side by the same amount (let's call that value x) to have the new area of 360 sqft. we can express that in a mathematical equation as follows:
(12+x)(20+x) = 240
here you are given an option to use mathematical manipulation to find your x or simply use all the choices and substitute it to x. which ever choice gives 360 is the answer.