Question

The bill for lunch at a restaurant was $30. The dinner added 20% tip. Which equation relates the tip, t, with the bill, b?

Answer 1

Hi! :)

The answer is A, here's why:

When tipping at a restaurant, first you need to figure out how much you're tipping. You need to move the decimal left 2 places on how much you tip. So for 20%, you get .20

Then to figure out how much to tip for 20%, you would multiply that .20 by how much the bill was and that's your tip. So .20*30=6. Your tip should be 6 dollars, and the formula for that is t=.20b

Answer 2

A would be the answer to this problem. To find any tip, you usually calculate it by percentage . So to find the percentage of the bill, you multiply it by the percentage which is divided by 100. So A, t=0.20b would be the answer.