Chemistry
posted by Deborah .
2. Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 90 pounds of algae, how much algae will be in the pond after 12 hours?
A.)720 pounds
B.)360 pounds
C.)1,440 pounds
D.)114 pounds
I think the answer is D.
Please help.
Thank You.
Respond to this Question
Similar Questions

Math
Suppose that the amount of algae is a pond doubles every 3 hours. If the pond initially contains 70 pounds of algae, how much algae will be in the pond after 9 hours? 
Algebra
A fish pond at the local park is a regular hexagon. a. Write a formula for the perimeter of the pond in terms of the length of a side. Explain your formula. b. Each side has a length of 7.5 feet. Find the perimeter of the pond. c. … 
science
Green algae grow in the fur of the South American sloth. The green algae provide camouflage for this treedoweling mammal, and from the fur and skin of the sloth the algae obtain moisture. A moth also lives in the fur. The moth larvae … 
math
The area covered by water lilies in a pond you own doubles in size every day. If allowed to grow the plants would cover the entire pond surface in 30 days. You had decided to do nothing until the pond is ½ covered. a. On what day … 
UGRENT HELP, math
1. Suppose that the amount of algae in a pond triples ever 2 hours. If the pond initially contains 80 ponds of algae, how much algae would be in the pond in 8 hours? 
biology
during the downpour in a village,the rainwater carried away excess of nitrogenous and other compounds present in the soil to a pond.how will they affect the growth of algae and phyloplankton in the pond? 
Math
In the middle pond is a patch of moss. The moss doubles in size every day. After exactly 20 days the complete pond will be covered by moss. After how many days will half of the pond be covered by the moss ? 
Algebra
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? 
math
Suppose the amount of algae in pond triples every day. After 12 days the pond is complete with algae. I believe that on day 4 the pond is 1/3 of the way full. Am i correct? 
math
Please check my math answers (and correct?