Using proportions, it is found that the speed of the runners are of 16 mph and of 20 mph.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount.
After 30 minutes, the runners are 2 miles apart, hence the second runner is 4 miles per hour faster than the second, that is:
.
The first runner's speed is 4/5 of the speed of the second runner, hence:





Hence, the speed of the runners are of 16 mph and of 20 mph.
More can be learned about proportions at brainly.com/question/24863377
The answer of the question is b
Answer: a is equal to b
Step-by-step explanation:
Answer: y=54
Step-by-step explanation: so 24/4 is 6 soooo 9*6=54 ez
Obtuse "angle"... is the answer.