Question

Determine whether each ratio or rate is proportional. Explain your reasoning and write the proportion.$3 for 6 cookies; $9 for 18 cookies

Answer 1

A proportion is an equality of two ratios. Both given information is showed below.

First relation

`(3\colon3)/(6\colon3)=(1)/(2)`

Second relation

`(9\colon3)/(18\colon3)=(3\colon3)/(6\colon3)=(1)/(2)`