Cost Price for oil change =$27 Charge for the customers =$40 Markup cost = Difference between selling price and cost price =$40-$27=$13 To find the percent of markup, divide the markup cost by the cost price and multiply it by 100. Markup percent = (13/27)*100 =48.15%
It is different because to find out the answer, change all denominators to 10, since the LCD is 10.
6/10-5/10=1/10
6/10-6/10=0/10
1/10 is not equal to 0/10
Assuming that the side of the triangle marked 13.5 is tangent to the circle, the there's a right angle where the radius meets the tangent segment. The triangle is then a right triangle and the Pythagorean Theorem applies.