The answer is 2/3 or two thirds.
Y = kx 360 = k(180) Divide both sides by 180 2 = k So you can now plug in this value into 270 = kx 270 = 2x Now divide both sides by 2 And your answer would be: 135 = x
hope this helps
(0, 0) <span>P = <span> ⇒ 0</span></span>
(0, 15) <span>P = <span> ⇒ 1200</span></span>
(6, 12) <span>P = <span> ⇒ 1260</span></span>
I am assuming that the cost of an oil change already includes the mark-up.
So, 18 is 175%. 18 ÷ 1.75 = 10.29 is the original cost.
10.29 * 3/4 = 30.87/4 = 7.71 mark-up
10.29 + 7.71 = 18
Or if 18 is the basis of the mark-up, then,
18 * 3/4 = 54/4 = 13.50 mark-up
18 + 13.50 = 31.50 new cost of an oil change
