So percent means part out of 100
30%=30/100=3/10
'of' means mutliply
30% of 130 is birds
3/10 times 130=birds
390/10=birds
39=birds
there are 39 exhibits with birds
Answer:
C.
Step-by-step explanation:
Let's solve your equation step-by-step.
25x2=16
Step 1: Divide both sides by 25.
25x2
25
=
16
25
x2=
16
25
Step 2: Take square root.
x=±√
16
25
x=0.8,−0.8
You have to use in your calculator cos^-1 of 0.9123
your angle=24.17 or 24°
Answer:
B. 20
Step-by-step explanation:
We are given rational number as
and 
We can see that
denominators are 4 and 5
So, we will find common denominator
So,
Common denominator is
So,
A common denominator is 20
