Question

what was the bill subtotal if a customer left a $22 tip that was 20%?

Answer 1

We know that the tip was $22, which represents 20% of the total, Ti dubs the bill subtotal, we have to solve the following proportion

$\frac{22}{0.20}=\frac{x}{1}$

Let's solve for x

$x=110$

Hence, the bill subtotal was $110.