Ashirt that normally sells for $28.00 before a discount was priced at $22.95 after discount. what percent was saved?

The original price was multiplied by a certain percentage, say x/100, and it became the discounted price. So, we have

Solving for x, we have

So, the discounted price is approximately the 82% of the original price. This means that 18% of the original price was discounted.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15