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3 years ago

Help pls (40 points)

Mathematics

2 answers:

dusya [7]3 years ago

6 0

Answer:

Step-by-step explanation:

Use this equation, were a represents the amount of strawberries sold:

4a+9(96-a)=644

Simplify the equation:

4a+864-9a=644

4a-9a=-220

-5a=-220

a=44

Phantasy [73]3 years ago

6 0

Answer:

the answer is 44 but let me know is fim wrong

Step-by-step explanation:

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Answer: A. 12.5

Step-by-step explanation:

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A large fish tank at an aquarium needs to be emptied so that it can be cleaned. When its

VikaD [51]

Answer:

The draining time when only the big drain is opened is 2.303 hours.

The draining time when only the small drain is opened is 5.303 hours.

Step-by-step explanation:

From Physics, we know that volume flow rate ( $\dot V$ ), measured in liters per hour, is directly proportional to draining time ( $t$ ), measured in hours. That is:

$\dot V \propto \frac{1}{t}$

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$t_{l,1}\approx 2.303\,h$ and $t_{l,2} \approx -1.302\,h$

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$t_{s} = 2.303\,h+3\,h$

$t_{s} = 5.303\,h$

The draining time when only the small drain is opened is 5.303 hours.

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