75.00
X .20
Equals 15.00
75.00-15.00= $60.00
Area of a rectangle = length x height
Area = 135
Height = X
Lenght = x +6
135 = x * x+6
Simplify:
135 = x^2 +6x
Subtract 135 from both sides:
x^2 + 6x - 135 = 0
Solve:
2 numbers when added need to equal 6 and when multiplied equal -135
x = 9 and x = -15
The height can't be a negative number so the height is 9
Length = 9 +6 = 15
Height = 9cm, Length = 15 cm
Answer:
Unit price = $1.75
Step-by-step explanation:
In order to determine the unit price of the batteries, divide the $10.50 total price for the 6-pack of batteries by 6:
$10.50 ÷ 6 = $1.75
Therefore, the unit price of each battery is $1.75.
2X^2+4X-8-X^2+6X-4
X^2+4X-8+6X-4
X^2+10X-12
