29. Nancy walked 516 yards in 6 minutes and then another 368 yards in 4 minutes.
What was Nancy's average speed?
A.
88.4 yd/min
B.
89 yd/min
C.
178 yd/min
D.
89.4 yd/min
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OpenStudy (x__hazel__x):
Is it similar to the last one?
TheSmartOne (thesmartone):
add total distance and divide it by the total time
average speed = (total distance)/(total time)
OpenStudy (anwaarullah):
its same like last question
OpenStudy (anwaarullah):
so try
OpenStudy (x__hazel__x):
Okay,
516/6 = 86
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OpenStudy (x__hazel__x):
Is that correct?
jimthompson5910 (jim_thompson5910):
hint: she walked 516+368 = 884 yards in 6+4 = 10 minutes
OpenStudy (anwaarullah):
nope take averg of these two thren
OpenStudy (x__hazel__x):
But Im trying to find the average
TheSmartOne (thesmartone):
so you have to find the total distance and the total time before using the formula :)
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OpenStudy (x__hazel__x):
ohh, how do I do that?
OpenStudy (anwaarullah):
516/6= $$ and 368/4=&& so $$+&&/2
OpenStudy (x__hazel__x):
516/6 = 68 and 368/4 = 92
TheSmartOne (thesmartone):
Hazel, Jim gave you the total distance and total time up above :P
OpenStudy (x__hazel__x):
OHH I didnt see that, sorry XD
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OpenStudy (x__hazel__x):
Thank you @jim_thompson5910
jimthompson5910 (jim_thompson5910):
no problem
OpenStudy (x__hazel__x):
Okay, so 884 yards in 10 minutes
OpenStudy (anwaarullah):
B option tho lol
OpenStudy (x__hazel__x):
lool
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OpenStudy (x__hazel__x):
So Ill put A
OpenStudy (anwaarullah):
89 is correct :PP
OpenStudy (anwaarullah):
but you have to try yourself otherwise you wont get math, if you do wana excel in it :PP