80% is 80 out of 100, so make that into a fraction: 80/100 and simplify it to make it 4/5. Multiply 4/5 by whatever it was you wanted to find 80% of (of means multiply in math) and simplify. DONE!
0.8
80percent
4/5
80'/.= 0.80
80/100 = 4/5
35 x 0.8 = 28
probably carbon
probally 80percent
0.8 x 1700 = 1360 80% of 1700 is 1360
first 400 is 4 times of 100 . so 80 percent of 400 is 4 times 80 which is 320. This can be done if the number is multipliable by 10.
We must remember that if the father is bald there is over 80percent chance that the son to will be bald.
90,000-166,000 people in Hiroshima and 60,000-80,000 in Nagasaki dead and 80percent of the cities destroyed.