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rosepederson80
15.09.2019 •
Mathematics
Ms. handler walks to work at an average speed of 5 km per hour. if she increases her speed to 6 kilometers per hour she will save 10 minutes.
find the distance she walks
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Ответ:
The distance she walks is 5 km
Step-by-step explanation:
Let
x -----> the distance in kilometers
y ----> the time in hours
we know that the speed is equal to divide the distance by the time
Average speed of 5 km/h
Average speed of 6 km/h
convert 10 minutes to hours
Solve the system by graphing
The solution is the intersection point both graphs
The solution is the point (5,1)
see the attached figure
therefore
The distance she walks is 5 km
Verify
Average speed of 5 km/h
Average speed of 6 km/h
The difference is the time she will save
Ответ:
10 to 3
Step-by-step explanation:
or you could do 10:3