Miss teng, a school teacher, usually walks at a speed of 0.5 m/s for y km to reach her school on time. on one cloudy day, she decided to walk the y km at a faster speed of w m/s in case it rained. if she reached her school 5 minutes earlier than usual, calculate y.

Step-by-step explanation:

We are given

Miss Teng normal walk:

speed =0.5 m/s

distance traveled =y km =y*1000

now, we can find time

we know

time = distance / speed

Miss Teng  walk on cloudy day:

speed =w m/s

distance traveled =y km =y*1000

now, we can find time

we know

time = distance / speed

If she reached her school 5 minutes earlier than usual

so,

now, we can plug values

now, we can solve for y

we can multiply both sides by w

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step-by-step explanation:

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