Answer:
5x-18
Step-by-step explanation:
2x+3x-18
5x-18
if ur in college how do u not know this :P
X/4 = -9
x/4 = -9/1
cross multiply
x = -36
M 7=280. you just multiply 7 by 40 to get your answer. i am pretty sure.
Alright in this one, you are going to need to factor.
The width is x
The length is 2x-4
To find the area of a rectangle is L*W
so (2x-4)(x) when distributed is 2x^2 -4x
Then put that in the equation and you have:
2x^2 -4x = 96
2x^2 -4x -96 = 0
2x^2+12x-16x-96=0
3x(x+4)-4(x+4)=0
(3x-4)=0
(x+4)=0
x=-4
<u>x=3/4</u>
Since length isn't negative
we will use <u>3/4 as x.
</u>
Width= 0.75 ft
Length= 1.5
