SOLUTION: What percent of 80 is 18? Find 30% of 40 What is 75% of 320?

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Question 305241: What percent of 80 is 18?
Find 30% of 40
What is 75% of 320?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
per cent means "per one-hundred"
18+=+%28x%2F100%29%2A80
1800+=+80x
x+=+1800%2F80
x+=+22.5
18 is 22.5% of 80
.3%2A40+=+12
30% of 40 is 12
.75%2A320+=+240
75% of 320 is 240