40.7k views
2 votes
Amanda drove 315 miles in 5 hours.

At the same rate, how long would it take her to drive 819 miles?

User Blithe
by
8.4k points

1 Answer

3 votes

Final answer:

To find how long it would take Amanda to drive 819 miles at the same rate, we can set up a proportion using the given distances and times.


Step-by-step explanation:

To find how long it would take Amanda to drive 819 miles at the same rate, we can set up a proportion using the distances and times. Since the rate (or speed) remains constant, we can say that 315 miles is to 5 hours as 819 miles is to x hours.

We can solve this proportion by cross-multiplying: 315 * x = 5 * 819. Simplifying this equation, we get 315x = 4095.

Dividing both sides by 315, we find that x = 13 hours. Therefore, it would take Amanda approximately 13 hours to drive 819 miles.


Learn more about Proportions in Mathematics

User Matthijs Kooijman
by
8.8k points

Related questions

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories