Supplementary angles always add up to 180. So you need to subtract 30 from 180. Which would give you 150. So 150 is your answer!
M = 4.
The reason why is because you first have to add 0.05 and 18 together, and than multiply it by the closes number to 81.20 which is 4, and also it cannot be over 81.20.
Start by getting one of the equations in terms of one variable, in this case lets put the first equation in terms of y
2x+y=3 ---> y=3-2x
now we plug that into the second equation
5x-2y=12 ---> 5x-2(3-2x)=12
we can then multiply and simplify
5x-2(3-2x)=12 ---> 5x-6+4x=12 ---> 9x-6=12 ---> 9x=18 ---> x=2
we can now plug x=2 into an equation to solve for y
2(2)+y=3 ---> 4+y=3 ---> y=-1
Answer:
(x) = ![\frac{4x-48}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B4x-48%7D%7B3%7D)
Step-by-step explanation:
let y = h(x) and rearrange making x the subject, that is
y =
x + 12 ( multiply through by 4 to clear the fraction )
4y = 3x + 48 ( subtract 48 from both sides )
4y - 48 = 3x ( divide both sides by 3 )
= x
Change y back into terms of x, thus
(x) = ![\frac{4x-48}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B4x-48%7D%7B3%7D)
75,069 divided by 45 is 1,668.2
I showed my division work here : http://i.imgur.com/v79bHDA.jpg