Lavania is studying the growth of a population of fruit flies in her laboratory. After 6 days she had nine more than five times
1 answer:
Answer:
Lavania observed 39 fruit flies after 6 days of observation
Step-by-step explanation:
Let x be the number of fruit flies on the first day of Lavania's study.
After 6 days she had nine more than five times as many fruit flies as when she began the study.
Five times as many fruit flies as when she began the study = 5x
Nine more than five times as many fruit flies as when she began the study=5x+9
The expression to find the population of fruit flies Lavania observed after 6 days is 5x+9
If she observes 20 fruit flies on the first day of the study, then x=6, then
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Answer:
Hence, the number of daylilies in the first year were:
600
Step-by-step explanation:
It is given that:
the recursive formula represents the number of daylilies, a, after n years.
Also we are given that in the fifth year they have 2,225 daylilies.
i.e.
Also,
This means that:
Similarly,
so,
and so, putting in terms of
we get:
Now on putting the value of we find the value of
Hence, the number of daylilies in the first year were:
600