The population of algae in an experiment increases by 30% each day. If there were 100 algae at the beginning, predict the number
1 answer:
Answer:
About 371
Step-by-step explanation:
This question is showing exponential growth, so use the formula a(b)^x, where a is the initial value, and b is the rate(as a decimal is working with percents). X is the time.
a=100
b=30% increase each day means 1.3 as a decimal
plug that in
100(1.3)^x
That's our exponential formula:
To find the number of algae after 5 days, plug in x for 5.
Evaluate (never round until the very end): 100(3.71293)
Further evaluate(now round to nearest whole number): ≈ 371
Therefore, the population is about 371 algae.
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