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galben [10]
3 years ago
11

A new type of pump can drain a certain pool in 4 hours. an older pump can drain the pool in 6 hours. how long will it take both

pumps working together to drain the pool? do not do any rounding.
Mathematics
1 answer:
Studentka2010 [4]3 years ago
8 0
Work in fractions of the pool the pumps can drain per hour:-

1/6 + 1/4  = 1/x     where x is the time to drain the pool by the 2 pumps together

4x + 6x = 24
10x = 24
x = 2.4  hours  <===== answer
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3 years ago
Marissa owns 135 shares of stock. Her dividend is $0.50 per share. How many shares can she buy of a different stock selling for
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Answer:

- If the new stock is selling for $11 per share, Marissa can buy 6 shares.

- If the new stock is selling for 11 cents per share, Marissa can buy 613 shares.

Step-by-step explanation:

The question is not totally clear with the last statement.

- How many shares can she now buy of a different stock, selling for $11 per share?

- How many shares can she now buy of a different stock, selling for 11 cents per share?

Marissa has 135 shares of stock

Each share has a dividend of $0.50 per share,

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8 0
2 years ago
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What is the simplified form of the expression? 3/a-9b
andrey2020 [161]
What you must do for this case is to rewrite the expression in a simplified way.
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Answer:

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2 years ago
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