Two swimmers start at opposite ends of a 90-feet rectangular pool. One swims 30 feet per minute and the other swims 20 feet per minute. If the swimmers keep swimming laps for a long time, how often and when will the swimmers meet each other (or be directly next to each other in their own lanes)? At what locations in the pool will this happen? Solve this in as many ways as you can.

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she drove 134 miles

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b) 62.47% of the students are between 14 and 18 years old.

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mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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