Question

Logan has his car professionally washed and wants to leave a tip of 15%. Write an equation Logan can use to calculate the tip, y, for a bill of x dollars.

Answer 1

I’m not completely sure since this type of question is not typically solved using slope intercept form but I believe it would y=.15x where 15% of x would be equal to y.

Answer 2

So if you wanna calculate the tip of something, you take your total price. You take percentage of tax and make it 0.15. Then, multiply it by your total price and add that to the bill. So basically I'm sorry but I can't think of an equation...

The formula for calculating the sales tax on a good or service is: selling price x sales tax rate, and when calculating the total cost of a purchase, the formula is: total sale amount = selling price + sales tax.