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Tal_Tal
 one year ago
This is a kinda advanced question and I have 3 more but I will fan and medal! Please help!
(02.08A)A hyena can run one over four mile in 22.5 seconds. Which of the following correctly shows this rate as miles per hour?
onefourth mile over twentytwo point five seconds = 40 miles per hour
twentytwo point five seconds over onefourth mile = 40 miles per hour
onefourth mile over twentytwo point five seconds = 90 miles per hour
twentytwo point five seconds over onefourth mile = 90 miles per hour
Thank you!
Tal_Tal
 one year ago
This is a kinda advanced question and I have 3 more but I will fan and medal! Please help! (02.08A)A hyena can run one over four mile in 22.5 seconds. Which of the following correctly shows this rate as miles per hour? onefourth mile over twentytwo point five seconds = 40 miles per hour twentytwo point five seconds over onefourth mile = 40 miles per hour onefourth mile over twentytwo point five seconds = 90 miles per hour twentytwo point five seconds over onefourth mile = 90 miles per hour Thank you!

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MrNood
 one year ago
Best ResponseYou've already chosen the best response.0you can work put units into an equation in the same way as numbers so look at this as a similar example: I can run 100m in 15 seconds how fast is that in miles per hour? \[\frac{ 100m }{ 15s } = \frac{ x miles }{ hour }\] 1mile = 1609 m 1 hour = 3600 seconds so \[\frac{ 100m }{ 15s} \times \frac{ 3600s }{1 \min } \times \frac{ 1 mile }{ 1609m }\] you can see that the units cancle out to give miles/hour so multiply out th efractions to get your answer you just need to do the same with YOUR numbers

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0! CORRECTION! middle term should be 3600s /1 HOUR

Tal_Tal
 one year ago
Best ResponseYou've already chosen the best response.0so I would put 1/4 a mile over 22.5 seconds?

Tal_Tal
 one year ago
Best ResponseYou've already chosen the best response.0I still don't really get it but oh well lol

MrNood
 one year ago
Best ResponseYou've already chosen the best response.0yes 1/4 mile/22.5s (that is the same as 1mile/4*22.5s) then put the conversion from seconds to hours (1hour = 3600s)

Tal_Tal
 one year ago
Best ResponseYou've already chosen the best response.0Wait hold on I think I get it. You put the mile on top and the seconds on the bottom

Tal_Tal
 one year ago
Best ResponseYou've already chosen the best response.0oooh now I get it! Thank you very much!!!
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