Question 1129013: An insurance office has 75 employees.If the 30 of the employees have cellular phones find the (a) the portion of employees who have cellular phones and (b) the portion of the employees who do not have cellular phones
Answer by addingup(3677)   (Show Source):
You can put this solution on YOUR website! 75 = 100% of the employees
30 have cell phones, 30/75 = 0.40 or 40% have cell phones
100% - 40% = 60% don't have cell phones
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do you know why we multiply times 100 to get %? Percent, per centum in Latin, means per one hundred. So if you have one hundred pennies and set 20 aside, you have set aside 20% (twenty for every hundred). Now you go to buy candy and they tell you it's 1 dollar but today because it's you they will give you a 20% discount. You can't take 100 out of 1, but you can cut % to 1, so 20% divided by 100 becomes 0.20. Now you can take 0.20 out of 1 dollar and pay 0.80 or, since there are 100 pennies in a dollar, you can say you're paying 80 cents.
Percentages are useful, work on them.
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