Answer:
B) 8,4 pounds
Step-by-step explanation:
![y = 1,8[4] + 1,2; 8,4 = y \\ \: \: \: \: \: \: \: \: \: \: \: 7,2](https://tex.z-dn.net/?f=y%20%3D%201%2C8%5B4%5D%20%2B%201%2C2%3B%208%2C4%20%3D%20y%20%5C%5C%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%207%2C2)
You substitute <em>four</em><em> </em><em>weeks</em><em> </em>in for <em>x</em>,<em> </em>multiply that by 1,8 to get 7,2, and finally add 1,2 to it, to get the total weight loss of 8,4 pounds [3,81018 kilograms].
I am joyous to assist you anytime.
Answer:
You want to solve for x, the first thing you need to do is distribute
The 2 through the x+4 then the other 2 through the -8-x
2(x+4)= 2x+8
2(-8-x)= -16-2x
2x+8=-16-2x-2x (combine like terms on the right side)
2x+8=-16-4x (now subtract 8 from each side)
2x=-24-4x (8-8=0, -16-8=-24) (now add 4x to each side)
6x=-24 (-4x+4x=0, 2x+4x=6x), (divide each side by 6)
x=-4 (6/6=1, -24/6=-4)
x=-4
Hope this helps ;)
Answer:
C
Step-by-step explanation:
3y-2x<=6
3(-4) - 2(2)<=6
-12-4<=6
-16<=6