X=12.
Substraction property.
Tyler made $42 commission
28% markup
$15.75 is how much he will make after raise
He pays 27.29 for the meal
Explain-$30*.15=4.5(savings). 30-4.50=25.50. 25.50*.07=1.785(rounded to 1.79). 25.50+1.79=$27.29(paid for meal)
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
Where:
m: It's the slope
b: It is the cut-off point with the y axis
On the other hand we have that if two lines are perpendicular, then the product of their slopes is -1. So:
The given line is:
So we have:
We find
So, a line perpendicular to the one given is of the form:
We substitute the given point to find "b":
Finally we have:
In point-slope form we have:
ANswer:
Step-by-step explanation:
x= how many members are in the group
x= 100/x
x= 100/(x-5)
x(x-5)=100
x^2-5x=100
x^2-5x-100=0
and then use the quadratic formula (i can't type it srry)