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Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao working together to clean a typical pool? Show all your work. Leave your final answer as an integer or a reduced fraction.

NEEED HEELP
WILL GIVE BRAINEST

Respuesta :

wegnerkolmp2741o

Answer:

3 3/7 hours

Step-by-step explanation:

The formula is

1/a+1/b = 1/c

where a and b are the times working alone and c is the time working together

1/8 + 1/6 = 1/c

Multiply each side by 24c to clear the fractions

24c(1/8 + 1/6) = 1/c *24c

3c + 4c = 24

7c = 24

Divide by 7

7c/7 = 24/7

c = 3 3/7 hours

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