I'm confused

Question

Hospital employees get a 22 % discount at the hospital cafeteria. If the lunch bill originally comes to $7.10, what is the price after discount?

Answer 1

Preliminary:

It is important to note that a percentage can be expressed as a decimal by dividing the percent by 100 (essentially moving the decimal to the left twice)

50% = 50/100 = .5

 

By multiplying any number by the decimal equivalent of a percentage, you are finding that percentage of the number.

50% of 8 = 8*.5 = 4

 

Answer:

the question is asking what the bill will be if 22% is taken off of the price. So first we must multiply the original price by the decimal equivalent of the percentage.

7.10*.22 = 1.562 which rounds in money terms to $1.56

 

Now we must take this percent off of the original price 

7.10 - 1.56 = 5.54

 

the person has to pay $5.54 with a 22% discount

Answer 2

Well,

I think it is easier if you split the question to two parts:

The first part:

What is the discount amount?

The answer is $1.562 (by multiplying .22

By 7.10, that is, 7.10×22%=1.562 ) 

The second part:

What is the lunch bill after the discounted amount?

The answer is $5.538 ( by subtracting 1.562 from 7.10, that is,

7.10 - 1.562 = 5.538 )