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Algebra_3

Chapter 64

Problem 1

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The number of fruit flies N increased by percent since yesterday.
There were fruit flies yesterday.
How many fruit flies are there today?
Use a diagram to solve the problem.
This statement can be written in shorthand form as:

click refresh (F5)

The total number of fruit flies yesterday (round to whole number)
N = fruit flies.


Example:

Suppose you have a box of 80 marbles. (see figure below)



50 percent more marbles are added to the box. How many marbles are now in the box.

Solution: 50 percent is written as click refresh (F5)

and thus 50 percent more marbles added gives: click refresh (F5) marbles

Try this solution by entering (1 + 50/100)80 into the Graphing Calculator in the Function f(x) = box .
Click on the Plot Graph button.
The answer will appear below the Function f(x)=box as f(x) = 120