71. answer is zero (0).
72. answer is negative six (6)
If you need the work shown, PM me...
Assume a statement true and then show it must be false.
<span>This is also called 'proof by contradiction'.</span>
Length is 4
Width is 5
Hope this helps
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:
The anwser is 1340
Step-by-step explanation:
divide 335 by 5 then multipilyby 20
