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TSI Math: Using Distance and Rate to Solve for Time 7 Views
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Description:
Driving at an average speed of 40 miles per hour, approximately how many minutes does it take Roberto to travel to a town that's 52 miles away?
Transcript
- 00:02
Okay sy Math from uppers Next up driving in an
- 00:04
average speed of forty miles an hour approximately how many
- 00:07
minutes does it take roberto to travel to a town
- 00:09
that's fifty two miles away Time to get dirty that's
- 00:18
d rt wide to be precise D stands for distance
Full Transcript
- 00:21
r stands for raid and t stands for time distance
- 00:25
equals rate times time right That's one of the famous
- 00:28
old formulas we love All right so we have a
- 00:30
distance and a rate and we're solving for time We
- 00:32
got fifty two that's Our distance equals forty miles an
- 00:35
hour times that time How many minutes So to figure
- 00:37
out the time they're weeds divide both sides by forty
- 00:39
to find that tea is fifty two over forty and
- 00:43
that's one point three it was at one point three
- 00:45
minutes or one point three hours Well the town's fifty
- 00:48
two miles away It's pretty far for a one point
- 00:51
three minutes unless you're superman or something So one point
- 00:54
three is in units of hours and since our rate
- 00:57
is in miles per hour in their sixty minutes in
- 01:00
an hour at least still in california for they dial
- 01:03
that back so one point three hours is one point
- 01:05
three times sixty or seventy eight minutes And the answer
- 01:08
is d and that was elegant way to solve it
- 01:10
but you could've solved for how long it took you
- 01:13
to go one mile and then multiply the whole thing
- 01:15
out But we didn't need to do that here Okay 00:01:17.663 --> [endTime] We're done
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