The fourth wrestler weighs 143 pounds.
125+183+169+143 = 620
620/4 = 155
Answer:
0
Step-by-step explanation:
√(r+n)/5=m
r=5m²-n
adding n on both sides
r+n=5m²-n+n
r+n/5=m²
taking square root on both sides
80% = 80/100 = 8/10 = 4/5
Answer: 4/5