Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle ABC
-----> the cosine is the adjacent side to angle A divided by the hypotenuse
substitute the values and solve for x
100% - 20% = 80%
$26.95 * 80% = $21.56
You multiply by 80% because you are taking 20% off and now want to know what 80% of the price will be.
60%
You divide 3/5 and then you get a decimal 0.6. Then you convert it to a percentage
This is a direct variation
C = pi*d
pi is a constant and it does thru (0,0)
