On Wednesday you drove from home to work at 60 mph and got there in 23 minutes. On Thursday you drove at 69 mph. Round answers to nearest 10th. Use:
R
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T
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R
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(double click this to see clearer)
Round answer to the nearest 10th and use Unit Abbreviations for Units
How long does the trip take on Thursday?How much time did you save by driving 9 mph faster?
See previous post: Wed, 1-25-17, 8:22 P.M.
To find out how long the trip took on Thursday, we can use the formula:
T2 = (R1 * T1) / R2
where:
T2 is the time taken on Thursday,
R1 is the speed on Wednesday (60 mph),
T1 is the time taken on Wednesday (23 minutes), and
R2 is the speed on Thursday (69 mph).
First, let's convert the time taken on Wednesday from minutes to hours by dividing by 60:
T1 = 23 minutes / 60 = 0.3833 hours
Now we can substitute the values into the formula:
T2 = (60 mph * 0.3833 hours) / 69 mph
Calculating:
T2 = 23.0 minutes
So, the trip took 23 minutes on Thursday.
To find out how much time you saved by driving 9 mph faster, we can subtract the time taken on Thursday from the time taken on Wednesday:
Time saved = T1 - T2
Substituting the values:
Time saved = 23 minutes - 23 minutes
Since the result is 0 minutes, it means you did not save any time by driving 9 mph faster on Thursday.