So first you start with finding 30%, and you do this by entering into a calculator 30 divided by 100 and then times it to the original book price. So:
30 divided by 100 x 15.40 = $4.62
So $4.62 is 30%, meaning all you have to do is take the original price of $15.40 and add the $4.62, so:
$15.40+$4.62= $20.02
Base = Height, Let them be x.
Solve quadratic equation:
x=6, x=-2(rejected because base and height is positive)
6x6/2 =18
Being a random number "x"
1 + x²
Step-by-step explanation:
|4x + 8| > 2
Therefore 4x + 8 > 2 or 4x + 8 < -2.
When 4x + 8 > 2, 4x > -6, x > -1.5.
When 4x + 8 < -2, 4x < -10, x < -2.5.
Hence, x < -2.5 or x > -1.5.
