Question

4. Draw a diagram to represent each situation:a. The number of miles driven this month was a 30% decrease of the number ofmiles driven last month.b. The amount of paper that the copy shop used this month was a 25% increase ofthe amount of paper they used last month.

Answer 1

4.

a.

Let:

x = Number of miles driven

We can express this situation as:

$x-0.3x=x(1-0.3)$

b.

Let:

y = Amount of paper

We can express this situation as:

$y+0.25y=y(1+0.25)$