Andrew and Kate have $30 to spend on dinner, tax, and gratuity at Mo’s Restaurant. Tax is 6%, and they will give a 15% tip on the total bill after taxes. Their dinner costs $21.00. Which statement correctly explains whether Andrew and Kate have enough money to pay their bill?

Yes. They have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.
No. They do not have enough to pay their bill: 30 dollars times 1.06 = 31 dollars and 80 cents and 31 dollars and 80 cents times 1.15 = 36 dollars and 57 cents.
No. They do not have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.

1 answer

To determine whether Andrew and Kate have enough money to pay their bill, we need to calculate the total cost of their dinner after including tax and gratuity.

  1. Dinner Cost: $21.00

  2. Tax: 6% of the dinner cost

    • Tax amount = $21.00 * 0.06 = $1.26
    • Total after tax = $21.00 + $1.26 = $22.26
  3. Gratuity: 15% of the total after tax

    • Tip amount = $22.26 * 0.15 = $3.34
    • Total bill including tip = $22.26 + $3.34 = $25.60

Now we consider their budget:

  • Andrew and Kate have $30.00.

Since $25.60 (the total bill) is less than $30.00 (the amount they have), they do have enough money to pay their bill.

The correct statement is: Yes. They have enough to pay their bill: 21 dollars times 1.06 = 22 dollars and 26 cents and 22 dollars and 26 cents times 1.15 = 25 dollars and 60 cents.