O professor de Matemática desafiou Marina a multiplicar de cabeça 2,745 por 100. Como Marina é uma aluna muito estudiosa, ela respondeu na hora que daria 274,5 e o professor lhe deu os parabéns. O que Marina
fez para calcular essa multiplicação de cabeça e tão rapidamente?

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

5x−4≥12 or 12x+5≤−4 can you with this problem