What is 75 divided by 2.5 75/2.5

30

Step-by-step explanation:

Not much honestly, just divide 75 by 2.5.

30

Step-by-step explanation:

Change the divisor 2.5 to a whole number by moving the decimal point 1 places to the right. Then move the decimal point in the dividend the same, 1 places to the right.

We then have the equations:

750 ÷ 25 = 30.000

and therefore:

75 ÷ 2.5 = 30.000

Both calculated to 3 decimal places.

a

step-by-step explanation:

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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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