2% , 5% , 10% are the errors in that
The sum of interior angles of this pentagon is 540 ( 180(5-2)=540)
So it is : 85+120+90+2x-10+180-x=540. ( in case you ask where did I get 180-x , it is bc the line is 180 degree so minus x it will help us find one of the interior angles)
So x+465=540. x=75
The value of exterior is 75
Answer: 20 questions
Step-by-step explanation:
From the question, Noah is taking an online survey and after answering 16 questions, he gets a message that he has completed 80% of the survey.
To get the total number of questions in the survey goes thus:
Let the total number of questions be y.
80% of y = 16
80/100 × y = 16
0.8 × y = 16
0.8y = 16
Divide both side by 0.8
y = 16/0.8
y = 20
The survey has 20 questions.
He wants $2100 = 30%
2100 is 30% of x
y = p% * x
x = y/p%
x = 2100/30%
30/100 = 0.30
x = 2100/0.30
2100/0.30 = 7000
His monthly net income would need to be $7000
