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Lelu [443]
3 years ago
8

rita and neha can do certain work indivisually in 20 hours and 25 hours. how much time will it take to complete the work togethe

r
Mathematics
1 answer:
vladimir2022 [97]3 years ago
7 0

Answer:

11.11 hours

Step-by-step explanation:

Rita = 20 hours

Neha = 25 hours

Let the time that they can complete the work together be written as x

1/20 + 1/25 = 1/x

Lowest Common Denominator is 500

25 + 20/500 = 1/x

45/500 = 1/x

Cross Multiply

45x = 500

x = 500/45

x = 11.111111111 hours

Approximately = 11.11 hours

Therefore, it would take Rita and Neha 11.11 hours to complete the work together.

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3 years ago
In the function f(x) = 6x + b, what must be the value of b, if f(5) = 1?
Brut [27]
<h3>Answer:    -29</h3>

=============================================

Work Shown:

f(x) = 6x + b

f(5) = 6(5) + b .... replace every x with 5

f(5) = 30 + b

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-----------

The function f(x) = 6x+b turns into f(x) = 6x+(-29) which is equivalent to f(x) = 6x-29

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5 0
3 years ago
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Step-by-step explanation:

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3 years ago
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