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ASHA 777 [7]
3 years ago
15

Todd keeps his 4 room house very clean. it takes him 1 hour and 36 minutes to clean his whole house. how long does it take him t

o clean one room?
Mathematics
1 answer:
vekshin13 years ago
5 0
136 = 96 Minutes 
96 / 4 = 24
24 x 4 = 96 

Answer Hopefully: 24 Minutes Per Room 

Hopefully this helps 
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A rug is to be centered in a room so that the border around it is of a consistent width on all four sides. If the room is 10 ft
aleksley [76]

Answer:

The width of the border can be 9 feet or 3.5 feet.

Step-by-step explanation:

Let the width be x

Length of room = 10 feet

Breadth of room = 15 feet

Length of rug = 10-2x

Breadth of rug = 15-2x

Area of rug = (10-2x)(15-2x)  

We are given that the area of the rug is 24 square feet.

So,  (10-2x)(15-2x)=24 ---A

150-20x-30x+4x^2=24

150-24-50x+4x^2=0

126-50x+4x^2=0

2(x-9)(2x-7)=0

x=9,\frac{7}{2}

x=9,3.5

Substitute x =9 in A

(10-2(9))(15-2(9))=24

24=24

LHS = RHS

Substitute x = 3.5

(10-2(3.5))(15-2(3.5))=24

24=24

LHS = RHS

So, The width of the border can be 9 feet or 3.5 feet.

7 0
3 years ago
Which choice shows how to find the least common multiple of 9
Len [333]
Circled numbers are prime factors comment if you need me to clarify anything

4 0
2 years ago
What is the solution to the liner equation <br><br> -12+3b-1=-5-b
Natalija [7]

Answer:

b=2

Step-by-step explanation:

-12+3b-1=-5-b

Combine like terms

-13 +3b = -5-b

Add b to each side

-13+3b+b = -5-b+b

-13+4b = -5

Add 13 to each side

-13+13 +4b = -5+13

4b = 8

Divide by 4

4b/4 = 8/4

b = 2

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3 years ago
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Answer:

The equation simplified equals to 7

Step-by-step explanation:

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2 years ago
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lina2011 [118]

Answer:

6) 9 7) 8 8) 7 9) 9

Step-by-step explanation:

5 0
3 years ago
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