SOLUTION: Jodi walks to school every morning. If she walks at a speed of 50 meters per minute, she will be 4 minutes late for school. If she walks at a speed of 65 meters per minute, she wil

Question 1180916: Jodi walks to school every morning. If she walks at a speed of 50 meters per minute, she will be 4 minutes late for school. If she walks at a speed of 65 meters per minute, she will reach her school 2 minutes before the assembly bell rings. How long does Jodi take to walk to school in order to be on time? How far is the school from her house?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!

Jodi walks to school every morning. If she walks at a speed of 50 meters per minute, she will be 4 minutes late for school. If she walks at a speed of 65 meters per minute, she will reach her school 2 minutes before the assembly bell rings. How long does Jodi take to walk to school in order to be on time?
Let jodi's normal time be t minutes
with 50 m/s 4 minutes late
Distance = speed * time
50*(t+4) = D
65(t-2) =D
50t+200 = 65t -130
15t = 330
t = 24
Normal time = 22 minutes
Check
50*26 = 1300m (4 minutes late)
65*20 = 1300 m (2 minutes early)
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