Step-by-step explanation:
3x+18+2x-5= -2x+-2+10
combining like terms
3x+2x+2x=5-2+10-18
7x=-5
x=-5/7
Answer:
15 meters
Step-by-step explanation:
................
Answer:
63 sq ft
Step-by-step explanation:
The formula for the area of a trapezoid is
A = h(a + b)/2 where a and b are the lengths of the parallel sides and h is the distance between them
A = 7(11 + 7)/2
= 7(18)/2
= 63 sq ft
Answer:
![x=1](https://tex.z-dn.net/?f=x%3D1)
Step-by-step explanation:
A direct variation equation has the following format:
![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
Where k is a constant.
We know that y is 12 when x is -2. Thus, substitute:
![12=-2k](https://tex.z-dn.net/?f=12%3D-2k)
Divide both sides by -2:
![k=-6](https://tex.z-dn.net/?f=k%3D-6)
So, our direct variation equations is:
![y=-6x](https://tex.z-dn.net/?f=y%3D-6x)
To find what x is when y equals -6, substitute in -6 for y:
![-6=-6x](https://tex.z-dn.net/?f=-6%3D-6x)
Divide both sides by -6:
![x=1](https://tex.z-dn.net/?f=x%3D1)
So, our answer is 1 :)