The selling price for a classic painting is $20,000, which is $1500 less than two times its original price. What was the original price of the painting?

Step-by-step explanation:

$10,750

Step-by-step explanation:

x is the original price, and we'll subtract $1,500 after we double that:

2x -1500 = 20,000

add 1500 to both sides

2x = 21500

divide both sides by 2

x = 10,750

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2