Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

7th grade math help! Solve the problem. The formula d = rt gives the distance traveled in time t at rate r. If a bicyclist rides for 2.3 hours and travels 41 miles, what was her average speed? A. 9.43 miles per hour B. 5.6 miles per hour C. 17.83 miles per hour D. 38.7 miles per hour

OpenStudy (anonymous):

@Abhisar

OpenStudy (k_lynn):

You first need to know the formula for speed. Do you know what it is?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

can someone please help me?

OpenStudy (anonymous):

i do Algebra 1 so if you need help on anything, tag me :)

OpenStudy (k_lynn):

the formula for speed is \[speed =distance \div time\] Now all you need to do is plug the numbers into the correct spots. So now the equation will look like this \[speed=41\div2.3\]can you finish the math for me @cmcleod1

OpenStudy (mathstudent55):

You are given d = rt r is the rate of speed That means to find the formula for the speed, you need to solve the given formula for r.

OpenStudy (k_lynn):

All you need to do to finish the problem is 41/2.3. Can you do that @cmcleod1

OpenStudy (anonymous):

@k_lynn is 17.83 correct?

OpenStudy (mathstudent55):

Now you have a new formula which is r = d/t The rate of speed is equal to the distance divided by the time. |dw:1421259487856:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!