Step-by-step explanation:
yo digo que es eso la verdad no se
The table below shows the total number of hours, Jessica, Emily, and Trina, each studied after given number of weeks. Part A one
of the relationships between weeks and total hours studied is proportional. Whose number of total hours studied is proportional to the number of weeks studied ? For the proportional relationship, write an equation to represent y, the total number of hours studied, in terms of x, the number of weeks. Explain how u determined your equation. Pls help
2 answers:
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General Idea:
The relationship between rate(R), distance(D) and time(T) given below:
Applying the concept:
We need to make use of the formula to find Kelly's walking rate before and after her snack
Option A isn't correct because before snack Kelly walking rate is not 4/14 miles per hour.
Option B is <u>Correct,</u> Kelly walking rate after snack is 2 2/3 miles per hour.
Option C isn't correct because it doesn't took Kelly 2 hours longer to walk 1/6 mile than it did for her to walk 1/4 mile. It took 1/112 hour longer.
Option D isn't correct because 2 2/3 miles per hour is slower than 3 1/2 miles per hour.
Conclusion:
Option B is <u>Correct,</u> Kelly walking rate after snack is 2 2/3 miles per hour.
7 minutes is the time can you afford to walk
<em><u>Solution:</u></em>
Given that, train is leaving in 11 minutes and you are one mile from the station
Let "x" represent how much time can you afford to walk
Then, (11 - x) is the time you run
You can walk at 4mph and run at 8mph
<em><u>Convert to miles per minute</u></em>
1 hour = 60 minutes
We know that,
Given that, you are one mile from the station
Therefore,
1 mile = distance walk + distance run
Thus, 7 minutes is the time can you afford to walk
Answer: Rosa is finding the number of kilometers in a mile.
Step-by-step explanation:
According to the given information, we have:
1,760 yd=1 mi
0.914 m=1 yd
1 km=1,000 m
So, as we can see, Rosa wants to convert miles to yards, then yards to meters and finally meters to kilometers:
Then:
This is the number of kilometers in a mile.