Well area of a rectangle is given by the equation
a = L x W
Since they give us the expression for length and width we can find the expression for the area...
a = (3x - 4) x (2x - 5) or simply
a = (3x -4)(2x - 5)
Now we multiply
6x^2 - 15x - 8x + 20 =
6x^2 - 23x + 20
Your answer is C.
60-12-18-2-8=20
=48-18-2-8
=30-2-8
=28-8
=20
So, 20 students don't take either of these subjects.
Took me a minute to think.
Form ratios.
x, the small triangle, forms a ratio with 6, the big triangle.
The part of the side that is equal(with the dash) that is part of the small triangle
is equal to 6-x, the big triangle.
Yes, you can cross-multiply here!
![\frac{6}{x} = \frac{8}{6-x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7Bx%7D%20%20%3D%20%20%5Cfrac%7B8%7D%7B6-x%7D%20)
<em>Now,</em><em> </em>cross multiply.
P.S. Use distributive property.
36-6x = 8x
Add 6x on both sides.
36=14x
Divide by 14 on both sides.
x =
![\frac{36}{14}](https://tex.z-dn.net/?f=%20%5Cfrac%7B36%7D%7B14%7D%20)
=
Answer:
12 feet of flooring cost $51
Step-by-step explanation:
68/16 = 4.25
4.25 x 12 = 51