Question

Sam wants to leave an 18% tip for his dinner. The bill is for $23.50.

Which equation could be used to find the total amount that Sam should pay?

x = (0.18)(23.5)
x = (23.5)(1.18)
1.18 = 23.5 x
23.5 = 0.18 x

Answer 1

x = (23.5)(1.18)

Because total = bill + 18% of bill = bill × (1 + 0.18) = 23.50 × 1.18 = $27.73.