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02.10.2021 •
Mathematics
Cynthia Besch wants to buy a rug for a room that is 21 ft wide and 28 ft long. She wants to leave a uniform strip of floor
around the rug. She can afford to buy 494 square feet of carpeting. What dimensions should the rug have?
The dimensions of the rug should be ft.
(Use a comma to separate answers as beeded.)
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Ответ:
You can put this solution on YOUR website!
Room area, 23*32
Rug area, (23-2x)(32-2x)
Uniform strip around rug, x
Rug area value will be 442 square feet.
highlight%28%2823-2x%29%2832-2x%29=442%29
-
Algebra steps lead to 2x%5E2-55x%2B147=0.
.
discriminant is 43%5E2.
x=%2855%2B-+43%29%2F4
x=%2855-43%29%2F4
highlight_green%28x=3%29the uniform width between walls and rug
Rug Dimensions:
17 feet and 26 feet
Step-by-step explanation:
Ответ:
Step-by-step explanation:
a triangle is the area of 2