Question

Hiro and his co-workers had lunch at a restaurant near their work. An 18% tip on their bill was $10.08. How much was the bill, not including the tip?

Answer 1

To find the bill without the tip, divide the given tip amount by the percentage and subtract it from the total bill.

Step-by-step explanation:

To find the total bill without the tip, we need to subtract the tip amount from the total bill including the tip. We know that the tip is 18% of the bill and it amounts to $10.08. To find the total bill, we can set up the equation: 18% of the total bill = $10.08. We need to convert 18% to a decimal by dividing it by 100. So, 0.18 multiplied by the total bill equals $10.08. To isolate the total bill, we divide both sides of the equation by 0.18. Therefore, the total bill is $56, excluding the tip.

Answer 2

$8.27

Step-by-step explanation:

First we need to find the tip. We know it was 18% of the total. So...

x (the variable we need to find) 18%

__ = ___

10.08 (the total bill including tip) 100%

cross multiply

100x = 181.44

-------------------- (divide by 100 to get x by itself)

100

x = 1.81 (The 18% tip that was given)

So now we know how much the tip was, we subtract it from the bill

10.08 - 1.81 = $8.27