Question

1) Jonah and three of his friends are splitting the dinner bill equally among themselves. Their total bill came to $86 before tax. If they want to leave an 18% tip on the cost of the dinner and there is a 6% sales tax, write an expression that could be used to find the total amount, including tax and tip, each of them pays.

Answer 1

`P=(1.18\cdot86\cdot1.06)/(4)`

1) Gathering the data:

Jonah and his 3 friends = 4 people

Bill = $86 (no tax)

Tip = 18% of $86 (1.18)

Sales Tax = 6%

Total amount =?

2) Let's calculate the Tip (18% over the Cost)

1.18 x 86=101.48

3) Let's calculate how much they'll pay with tax

101.48 x 1.06=107.57 (rounding up)

Dividing by 4 : 107.57 : 4 = $26.89

4) Expression:

`P=(1.18\cdot86\cdot1.06)/(4)=26.89`