The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4
At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5
-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5
This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
Answer:
Chicken strips
Step-by-step explanation:
Dont ask they are just on my mind
Answer:
k =4/5
Step-by-step explanation:
![k - 4.8=0.32 - 5.4k\\\mathrm{Multiply\:both\:sides\:by\:}100\\k\times\:100-4.8\times\:100=0.32\times\:100-5.4k\times\:100\\\\Refine\\100k-480=32-540k\\\\Add\: 480\mathrm{\:to\:both\:sides}\\100k-480+480=32-540k+480\\\\Simplify\\100k=-540k+512\\\\\mathrm{Add\:}540k\mathrm{\:to\:both\:sides}\\100k+540k=-540k+512+540k\\\\Simplify\\640k=512\\\\\mathrm{Divide\:both\:sides\:by\:}640\\\frac{640k}{640}=\frac{512}{640}\\\\k=\frac{4}{5}](https://tex.z-dn.net/?f=k%20-%204.8%3D0.32%20-%205.4k%5C%5C%5Cmathrm%7BMultiply%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D100%5C%5Ck%5Ctimes%5C%3A100-4.8%5Ctimes%5C%3A100%3D0.32%5Ctimes%5C%3A100-5.4k%5Ctimes%5C%3A100%5C%5C%5C%5CRefine%5C%5C100k-480%3D32-540k%5C%5C%5C%5CAdd%5C%3A%20480%5Cmathrm%7B%5C%3Ato%5C%3Aboth%5C%3Asides%7D%5C%5C100k-480%2B480%3D32-540k%2B480%5C%5C%5C%5CSimplify%5C%5C100k%3D-540k%2B512%5C%5C%5C%5C%5Cmathrm%7BAdd%5C%3A%7D540k%5Cmathrm%7B%5C%3Ato%5C%3Aboth%5C%3Asides%7D%5C%5C100k%2B540k%3D-540k%2B512%2B540k%5C%5C%5C%5CSimplify%5C%5C640k%3D512%5C%5C%5C%5C%5Cmathrm%7BDivide%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D640%5C%5C%5Cfrac%7B640k%7D%7B640%7D%3D%5Cfrac%7B512%7D%7B640%7D%5C%5C%5C%5Ck%3D%5Cfrac%7B4%7D%7B5%7D)
Answer
x=12
Step-by-step explanation: