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allsm [11]
2 years ago
10

Please answer both parts, will give first answer brainliest

Mathematics
1 answer:
S_A_V [24]2 years ago
5 0

Answer:#1- 3.0 in. #2- 11.0 in.

Step-by-step explanation:

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A rectangular bedroom is 4 ft longer than it is wide. Its area is 140 ft2. What is the width of the room? ft
steposvetlana [31]

Answer: width = 10 ft

Step-by-step explanation:

Area = length × width

Let l be length and w be width

l = w + 4 ........equation (1)

From above formula

140 = l × w. ........equation (2)

Substitute equation (1) into equation (2)

140 = (w+4) × w

w^2 + 4w= 140

w^2 + 4w - 140= 0

By factorization method

(w+14)(w-10)= 0

w=-14 or w= 10

So now width is 10 ft

From equation(1)

l=w+4

l= 10+4

l= 14 ft

Width = 10 ft and length = 14 ft

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3 years ago
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Step-by-step explanation:

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2 years ago
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21-3+18÷6=6<br> Determine if True?
Lunna [17]

Answer:

False

Step-by-step explanation:

21-3+18\div 6 \\\\=21-3+3\\\\=21-0\\\\=21\neq 6

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B. 1/4(n - 64)

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