## anonymous one year ago Suppose that the amount of algae in a pond doubles every 6 hours. If the pond initially contains 50 pounds of algae, how much algae will be in the pond after 18 hours? pls tell me how to solve this :)

1. anonymous

try multiplying and then divied your answer by 6

2. anonymous

ok

3. anonymous

did you get it

4. anonymous

The answer choices are a.400 b.10,800 c.300 d.600

5. anonymous

i havent gotten it yet

6. anonymous

ok

7. misty1212

there are 3 doubling periods in 18 hours i.e $$18\div 6=3$$ so it will doube 3 times

8. misty1212

do $50\times 2^3$

9. anonymous

ohhhh I got 400, so that is how i solve it. Thanks Ms. Misty it rly helped alot :) i will give medal :D

10. anonymous

sorry im only in 6th grade :(