Answer:
a)
b)
Step-by-step explanation:
Part a
For this case we need to find a linear model like this one:
We assume that the fixed costas are 300 per day so then the value of b = 300
And then we can use the other condition
And we can find the value for the slope like this:
So then the lineal model would be given by:
Part b
For this case we defined the cost per board like this:
So we just need to divide the function that we found on part a by x and if we do this we got:
It dose not matter what letter or symbol to find the unknown number because you are only using something to represent that number.
Answer:
c = 77
b = 77
Step-by-step explanation:
c and b are equal because they are vertically opposite.
In addition, they both form a supplementary pair with 103 (but not at the same time).
c + 103 = 180 c and 103 form a supplementary pair.
c = 180 - 103
c = 77
c = b = 77
Answer:
C
Step-by-step explanation:
For the lines to be parallel, then the 2 given angles are alternate and congruent, thus
15x - 46 = 9x + 8 ( subtract 9x from both sides )
6x - 46 = 8 ( add 46 to both sides )
6x = 54 ( divide both sides by 6 )
x = 9 → C