Let the width = X
The length would be X + 20
Area = Length x width:
2400 = x * (x+20)
Simplify:
2400 = x^2 + 20x
Subtract 2400 from both sides:
x^2 + 20x - 2400 = 0
Factor:
(x-40) (x+60) = 0
Solve for both x's:
x = 40 and x = -60
The dimensions of a parking lot have to be positive values so you would use x = 40.
The width = x = 40
The length = x +20 = 40+20 = 60
The dimension of the parking lot is 40H x 60H
Answer:
31/3 or 31 over 3
Step-by-step explanation:
If you do the whole number (10) times the denominator (bottom number of the fraction,in this case 3) the add the numerator (top number of the fraction,in this case 1) you will get your improper fraction.
-4y = 8x
Divide both sides by -4
y = -2x
This is in the form of y = kx, where k is the constant of variation.
y = kx is the direct
That means, k = -2.
The constant of variation is B. -2.
Answer: 9
Concept:
Here, we need to know the idea of absolute value.
The<u> absolute value</u> of a number or integer is the actual distance of the integer from zero, in a number line.
There are <u>no negatives </u>in absolute value. So in practice "absolute value" means to remove any negative sign in front of a number, and to think of all numbers as positive.
Solve:
<u>Given</u>
3 |-3|
<u>Expand absolute value sign, which means making [-3] positive</u>
= 3 × (3)
<u>Simplify by multiplication</u>
=
Hope this helps!! :)
Please let me know if you have any questions