A car salesman purchased a car at an auction for $8,550. he will re-sell the car at a markup of $11,970. what is the percent increase of the markup?

40%

Step-by-step explanation:

You subtract 11,970-8,550 = 3,420 to isolate the increase.

Divide 3,420/8,550 = .4 to get the percent increase of the markup.

The answer is .4 or 40% (they are equivalent)

You can check my work by multiplying 8,550 * .4 = 3,420

This answer is the percent of 8,550 that it increased (40% of 8,550) so make sure that is what the question is asking. If it is then it's your answer.

the answer is 489

step-by-step explanation:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: