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Zigmanuir [339]
3 years ago
13

the area of a rectangular living room is 300 square feet. the length of the room is 10 feet less than twice the width

Mathematics
1 answer:
JulsSmile [24]3 years ago
6 0

Answer:

The length is 20, and the width is 15.

Step-by-step explanation:

You have to write an expression to represent this situation. w can be the width, and the length can be 2w-10. To fnd the area, you multiply these together. w(2w-10) is 2w^2 -10w. From there, 15 is the only value of w that satisfies the equation, so w=15. Substitute 15 into your expression for lngth, and 2(15)-10 is 30-10 is 20, so the length is 20.

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