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Neporo4naja [7]
3 years ago
7

If Frances can paint 1/3 of a wall in 20 minutes, how long will it take her to paint a room with 4 walls.

Mathematics
2 answers:
DanielleElmas [232]3 years ago
8 0

Answer:

C. 240 minutes

Step-by-step explanation:

If 1/3 of a wall takes 20 minutes, then 3/3 of a wall would take 60 minutes(hour). Then multiply 60x4 and you get 240.

20x3=60

60x4=240

charle [14.2K]3 years ago
6 0

Answer:

1/3 is 20

4 is x

C

Step-by-step explanation:

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Hao dog ate 40 cans of dog food in 31 days how many cans does hao need to buy for the next 6 days
guajiro [1.7K]

40 divides by 31 = 1.29 which is 1 1/3 cup per day

1.29 x 6 days = 7.74 cans

About 7 3/4 cans in 6 days

5 0
3 years ago
Slope-Intercept <br> Find “y” alone<br><br> 2( y - 3 ) = 10x + 4
Anettt [7]

Answer: y = 5x + 5


Step-by-step explanation: Okay follow these steps to get y alone.

2 ( y - 3 ) = 10x + 4

2y - 6 = 10x + 4

2y = 10x + 10

y = 10/2x + 10/2

y = 5x + 5


6 0
3 years ago
Help Please need help
Olenka [21]
Table:

x      y

-3    0.5

-2    1

-1     2.5

0      5

1      8.5

Now, y = ax^2 + bx + c

Start replacing x = 0 and y = 5

5 = a(0) + b(0) + c => c = 5.

Now, replace any other two pair of data:

(-2, 1) => -1 = a(-2)^2 + b(-2)

-1 = 4a - 2b

(1, 8.5) => 8.5 = a(1)^2 + b(1)

8.5 = a + b

Solve the system

4a - 2b = - 1
a + b = 8.5

=>

4a - 2b = - 1
2a + 2b = 17
-------------------------

6a = 16

=> a = 16 / 6 = 8/3

b = 8.5 - a = 17/2 - 8/3 = 35/6

=> y = (8/3)x^2 + (35/6)x + 5 <--------- answer

6 0
3 years ago
How to simplify -6(1+11b)
nignag [31]
Simplify <span>-6(1+11b) using distributive property

-6 - 66b</span>
6 0
3 years ago
Read 2 more answers
66 is 3/4 of what number
Anarel [89]

Answer:88

Step-by-step explanation:

Divide 66 by 3 (66/3)

Then you should get 22

Multiply 22 by 4 (22 x 4)

Answer: 88

3 0
3 years ago
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