in a survey of a market ,143 people use white tooth paste and 1135 use red tooth paste .if 70 people use both types of tooth pastes ,find the number of people who usu at least one type of tooth paste​

n (w)=143

n(r)=1135

n (both)=70

Step-by-step explanation:

n(w only )=143-70

=73

n (r only)=1135-70

=1065

number of people who use at least one type of toothpaste =73+1065

=1138

7200

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