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luisz
Group Title
In the morning, Alan drove 100 miles at the rate of
60 miles per hour; in the afternoon, he drove
another 100 miles at the rate of 40 miles
per hour. What was his average rate of speed,
in miles per hour, for the day?
 one year ago
 one year ago
luisz Group Title
In the morning, Alan drove 100 miles at the rate of 60 miles per hour; in the afternoon, he drove another 100 miles at the rate of 40 miles per hour. What was his average rate of speed, in miles per hour, for the day?
 one year ago
 one year ago

This Question is Closed

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
heck no
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
oh i mean heck no to 50
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
average speed is not the average of the speeds
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
oh man, you are a guru
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
you are even higher than DA PANIC!!!!!!
 one year ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.0
Oh, sorry...just been a while since I've done these...
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
figure out how long it took to get there, then figure out how long it took to get back that is the total time divide the total distance (200 miles ) by the total time to get the average speed
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
2.5+1.666666667
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
divided by 200
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
200/4.166666667?
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
time going it \(\frac{100}{60}\) time returning is \(\frac{100}{40}\) total time is \[\frac{100}{60}+\frac{100}{40}=\frac{25}{6}\] and \[200\div \frac{25}{6}=200\times \frac{6}{25}=8\times 6=48\] as luisz said
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
5/2+5/3=15/6+10/6=25/6
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
200 divided by 25/6=48
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
you nothing about truth tables, guru?
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
now redo the problem replacing 100 by \(m\) and see that the answer is still 48 mph
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
by friend, aripotta needs help with them?
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
yes, we can do them
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
go ahead and post
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
its not me who needs help with them
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
its aripotta
 one year ago

luisz Group TitleBest ResponseYou've already chosen the best response.1
I'm posting a different problem
 one year ago
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