Using proportions, it is found that the equivalent ratio to six-seconds would be of 3 to 1.
<h3>What is a proportion?</h3>A proportion is a fraction of total amount, and the measures are related using a rule of three.
In this problem, six quarters are equivalent to two pennies. Dividing into two groups, there would be a penny in each group, and we want to find the amount of quarters.
The <em>rule of three</em> is:
2 pennies - 6 quarters
1 penny - x quarters
Applying cross multiplication:
The equivalent ratio to six-seconds would be of 3 to 1.
You can learn more about proportions at brainly.com/question/24372153