How do you write 1 is to 2 as 5 is to x

Question

as a proportion in fractional notation?(1 point)
Responses

2/1=5/x
Start Fraction 2 over 1 End Fraction equals Start Fraction 5 over x End Fraction

1:2=5:x
ratio of 1 to 2 equals ratio of 5 to x

1:3::5:x
ratio of 1 to 3 colon colon ratio of 5 to x

12=5x

Answer 1

To express "1 is to 2 as 5 is to x" in fractional notation as a proportion, you would write it as:

\[ \frac{1}{2} = \frac{5}{x} \]

So the correct response is:

Start Fraction 2 over 1 End Fraction equals Start Fraction 5 over x End Fraction (which corresponds to \( \frac{1}{2} = \frac{5}{x} \)).