Question

Qual igualdade forma uma proporção

A) 7/3=14/9

B)1/4=6/3

C)100/40=5/2

D)1/5=2/15
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Answer 1

Resposta:

A 7/3 2. 14/9 1.

Errada

B 1/4 0.25 6/3 2

Errada

C 100/40 2.5 5/2 2.5

Correta

D 1/5 5 2/15 0.

espero ter ajudado

Answer 2

Resposta: C

$a)\frac{7}{3}=\frac{14}{9}\\7*9=14*3\\63\neq42\\\\b)\frac{1}{4}=\frac{6}{3}\\\frac{1}{4}\neq2\\\\c)\frac{100}{40}=\frac{5}{2}\\100*2=5*40\\200=200$

$d)\frac{1}{5}=\frac{2}{15}\\15\neq10$

alternativa C , $C)\frac{100}{40}=\frac{5}{2}\\\frac{10:2}{4:2}=\frac{5}{2}\\\frac{5}{2}=\frac{5}{2}$

Explicação passo-a-passo: