Question

Lavania is studying the growth of a population of fruit flies in her laboratory. After 6 days she had nine more than five times as many fruit flies as when she began the study. If she observes 20 fruit flies on the first day of the study, write and evaluate an expression to find the population of fruit flies Lavania observed after 6 days

Answer 1

No,

The answer of part A is 5(20) =9 and part B is 109

because the x is not the number of days, it's the number of the fruit flies I even asked my teacher, she said that my answer is correct.

Please don't write any other answer because this is the right one

Answer 2

Lavania observed 39 fruit flies after 6 days of observation

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

`5x+9=5\cdot 6+9=30+9=39`