Set up a system of equations
Let x=first salesperson's paycheck
y=second salesperson's paycheck
x= y-.15y
x+y= 1425
Solve by substituting x
(y-.15y)+y= 1425
1.85y= 1425
y= 770.27
Substitute 770.27 for y in order to solve for x
x= (770.27)-.15(770.27)
x= 770.27-115.54
x=654.73
So the first salesperson(x) has a paycheck of $654.73 and the second salesperson(y) has a paycheck of $770.27.
Hope this helps!
The slope of parallel lines are the same and the slope of perpendicular lines are negative reciprocal
example: parallel, slope line 1: 2 slope line 2: 2
perpendicular, slope line 1: 2 slope line 2: -1/2
I can't help you with index notation, but i can give you the other part.
80 = 5 X 16 = 5 X
5 and 2 are prime numbers.
I picked five because 80 is not divisible by 3.
C
By the law of sines, where A, B, C are the angles and a, b, c are the lengths of the sides opposite their respective angles. In this case, is opposite 4.6 and A is opposite 3.2, so , giving the answer.