A survey of 120 teachers determined the following:
70 had high blood pressure
40 had h...
Mathematics, 16.02.2021 22:30 fjarbo
A survey of 120 teachers determined the following:
70 had high blood pressure
40 had heart trouble
20 had both high blood pressure and heart trouble
What percent of the teachers surveyed had neither high blood pressure nor heart trouble?
PLZ HELP! I WILL GIVE BRAINLIEST TO FIRST ANSWER!
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