Number of females = f
Total number of people in audience = n
0.4n = f
f + (f+ 100) = n
2f + 100 = n
Find n:
f = 0.4n --> Replace f with 0.4n in the equation 2f +100 = n
2(0.4n) + 100 = n --> Multiply out the brackets
0.8n + 100 = n --> Subtract 0.8n from both sides
100 = 0.2n --> To get n, multiply both sides by 5
n = 500
There were 500 people in the audience.
Answer:0.33333333333
Step-by-step explanation:no need
Step-by-step explanation:
Given that
∆ABC is a right angled triangle
angle B = 90°
BC = 50 units
Hypotenuse (H) = AC
AC = 100 units
We know that
Cos A = Adjacent side to angle A / Hypotenuse
→Cos x = BC / AC
→Cos x = 50/100
→Cos x = 1/2
→Cos x = Cos 60°
.°. x = 60°
Hence, the value of “x” is 60°
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Answer:
rational
Step-by-step explanation:
becuse when you simplify u get 1/6 and then that is a integer and decimal so that makes it an rational number
1/2 hope it helps just starting out