Final answer:
No, the ratios 4:20 and 2:4 are not equivalent.
Step-by-step explanation:
When comparing two ratios, we can check if they are equivalent by setting them equal to each other and simplifying. In this case, the ratios are 4:20 and 2:4. We can set up the proportion:
4/20 = 2/4
To simplify, we can divide both sides of the equation by 4:
1/5 = 1/2
The two ratios are not equivalent because 1/5 is not equal to 1/2.