Ao final do ano de 2020, a Escola Beatriz de Quadros Leme tinha um total de 800 alunos, no conselho de classe do quarto bimestre, a quantidade de alunos aprovados foi de 680. Qual a porcentagem de alunos reprovados?

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.