If youre trying to solve for the variables you have to solve for one of them in one equation first, so if you solved for x in 2x+3y=16 youd get x=8-(3/2)y. Then youd have to sub in that x for the x in the other equation so youd get 3(8-(3/2)y)-2y=13 then solve for y. Once you have the value of y it should be the same in both equations. Plug that new value of y into the equation of youre choosing then sove for x
Answer:
32 ft
Step-by-step explanation:
Given data
Length= 8ft
Area= 64 f^2
Let us find the width
Area= Length*Width
64= 8* Width
Width= 64/8
Width= 8ft
Hence the perimeter= 2L+2W
P= 2*8+2*8
P= 16+16
P= 32 ft
This is a linear equation, and it is solved for finding the value of x.
2x - 5 = -20
now simple number -5 goes to the other side of equation and turns into +5, then the equation becomes
2x = -20 +5
now we get 2x = -15
because -20 + 5 = -15, greater number is 20 then 5 and 20 is with - sign.
the next step is x = -15/2
in 2x, 2 is multiplying with x when it goes to the other side of equation 2 will be divided with -15, that's why we get
x = -15/2
which is the value of x
We know that for all B:
![\csc\text{B}\in(-\infty,-1]\cup[1,\infty)](https://tex.z-dn.net/?f=%5Ccsc%5Ctext%7BB%7D%5Cin%28-%5Cinfty%2C-1%5D%5Ccup%5B1%2C%5Cinfty%29)
So the answer is 0,5 (b.)
