At dinner one night Sean paid a total of $54.32. The tax was 8%, and he left a 20% tip on the check and tax. Which equation can be used to find the amount of the check BEFORE tax and tip?

Mathematics · College · Tue Nov 03 2020

Answered on

Given:

At dinner one night Sean paid a total of $54.32. The tax was 8%, and he left a 20% tip on the check and tax.

Determine the amount before tax and tip.

Solution:

In order to do so, we must take 20% and 8% first then subtract their total to the amount in order to get the original amount.  In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100.

= 8/100

= 0.08

= 20/100

= 0.2

We must first subtract the 20 percent then take the 8 percent and subtract it to again. To clearly understand this, please refer to the equation below.

= (0.2)(54.32)

=$10.864

= $54.32 -$10.86

= $43.46

= (0.08)(43.46)

=$3.47

= $43.46 - $3.47

=$39.99

=$40.00

FInal answer:

=$40.00