What is 240 / 2/5? I need help for a quiz so i can understand

So since you're dividing a fraction, you need to solve 2/5. So you would divide 2 by 5 and that would leave you with 0.4. so now it's 240/0.4 so divide those. Then your answer is 600!

Step-by-step explanation:

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35-60 students are taking math.

hello,

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

step-by-step explanation:

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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step-by-step explanation: