To find the percentage,we need to form a fraction first:
The nominator would be: the students who have not blue eye and were not wearing orange at the same time (50)
The denominator: students with not blue eyes (20)
Hence we can form the fraction: 20/50
To find the percentage, we can multiply the fraction by 100%:
20/50x100%
=2/5 x 100%
= 200/5 %
= 40%
Therefore the answer is 40%.
Hope it helps!
Answer:
The parallel line has slope 
The perpendicular line has slope 
Step-by-step explanation:
Equation of a line:
The equation of a line has the following format:

In which m is the slope.
Parallel lines:
Parallel lines have the same slope.
Perpendicular lines:
If two lines are perpendicular, the multiplication of their slopes is -1.
In this question:
We have the following line:

Placing it in the general format


So this line has slope 
Parallel line:
Same slope, so the parallel line has slope 
Perpendicular line:
Multiplication of the slopes is -1. So



The perpendicular line has slope 
Answer:
456 is the number you are looking for.
Step-by-step explanation:
Consecutive numbers are numbers which continuously follow each other in the order from smallest to largest.
Have a nice day!
Answer:
ahhhhhh
Step-by-step explanation:
The ratio ...
... seniors : juniors = 3 : 2
can be multiplied by 7 to get
... = 21 : 14
indicating there are 14 juniors for the 21 seniors in the choir.