Um fabricante de caixas d'água pré-moldadas, deseja fabricá-las na forma cilíndrica com 4 metros de altura interna com capacidade de 1.000 litros. Então, o raio da base da caixa d'água é, em metros, igual a:

The correct answer would be "convenience"

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.