Because you are not multiplying the number by anything. It's like multiplying 2 x 1.
I hope that made sense ...
Isolate y
2x + y = 5
y = -2x + 5
The slope of the new line should be -2, since parallel lines have same slope.
Since y-int. is 4:
y = -2x + 4 is the new equation.
So,
Mark wants $100 for 10 hrs., or $10/hr.
Rick wants $80 for 9 hrs., or

$8.89/hr.
Steve wants $75 for 8 hrs., or $

/hr. or $9.38/hr.
Finally, Andy wants $60 for 5 hrs., or $12/hr.
We can see that <u>Rick</u> offers the best deal, at $8.89/hr.
Step-by-step explanation:
the empirical probability is 24/30, or 4/5. this is also the desired probability.