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KatRina [158]
3 years ago
10

Suppose that the amount of algae in a pond doubles every 5 hours. If the pond initially contains 10 pounds of algae, how much al

gae will be in the pond after 20 hours?
Mathematics
1 answer:
photoshop1234 [79]3 years ago
3 0
100000 pounds of algae will be in the pool. Do an exponential equation. 10*10=100*10=1000*10=10000*10=100000
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You didn't give the options but let me help out.

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3 years ago
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8 0
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\left\{\begin{array}{ccc}x+2y=4&\text{multiply both sides by 5}\\4x-5y=42&\text{multiply both sides by 2}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}5x+10y=20\\8x-10y=84\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad13x=104\qquad\text{divide both sides by 13}\\\\\boxed{x=8}\\\\Answer:\ \boxed{\boxed{x=8}}

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