Ask question

Ask question

All categories

2 years ago

15

Aaron can paint a door in 3 hours, and Anna can do the same job in 2 hours. Working together, how many hours will it take them t

o paint a door?

1 answer:

Naya [18.7K]2 years ago

8 0

Aaron = 3 hours
Anna = 2 hours

3 divided by 2 = 1.5

It should take 1 hour and 30 minutes for both of them to paint a door

You might be interested in

Find the volume of a pyramid with a square base, where the perimeter of the base is 10.1\text{ ft}10.1 ft and the height of the

rjkz [21]

Answer:

28.5 ft^3

58.3 m^3

Step-by-step explanation:

volume of a pyramid = 1/3 x length x width x height

Perimeter of a pyramid = 4 x length

10.1 = 4 x length

length = 10.1 / 4 = 2.525

1/3 x (2.525 x 2.525 x 13.4) = 28.5 ft^3

1/3 x (6.1 x 6.1 x 4.7) = 58.3 m^3

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

8 0

2 years ago

76 % of 150 calculate this

IrinaVladis [17]

76% of 150 would be 114 I think I’m not to sure tho

4 0

2 years ago

The table represents the start of the division of 15x3 + x2 - 3x + 2 by 3x + 2.

9966 [12]

The result of dividing $15x^{3}+x^{2}-3x+2$ by $3x+2$ is $5 x^{2} -3x+1$ with no remainder. Please check the step by step procedures in the picture attached.
We can conclude that:
The quotient of the division is $5 x^{2} -3x+1$
The remainder of the division is $0$
The divisor is $3x+2$
The dividend is $15x^{3}+x^{2}-3x+2$

4 0

3 years ago

The grades for the latest statistics exam are normally distributed. The mean was 93 with a standard deviation of 4. What is the

olga_2 [115]

Answer:68.27%

Step-by-step explanation:

TI84

2nd distr

normalcdf(89,97,93,4)

3 0

3 years ago

Simplify the following: x^4 - 5x⁴ + x² - 6x²

lys-0071 [83]

Answer:

I think − 4 ⁴ − 5 ²

Step-by-step explanation:

I might be wrong.

3 0

2 years ago