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​

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.