Solved on Jan 12, 2024

Find the total meal cost after an 18% tip on a $58 meal.
a) Let m=m = meal cost. The equation is: Total Meal Cost=m+0.18m\text{Total Meal Cost} = m + 0.18m
b) The total cost of the meal is = $68.44\$68.44

STEP 1

Assumptions
1. The cost of the meal before tax and tip is represented by mm.
2. The total cost of the meal including tax is 5858 dollars.
3. The tip is calculated as 18% of the meal cost before tax and tip.

STEP 2

To find the equation that represents the total cost of the meal including the tip, we need to express the tip as a percentage of the meal cost mm.
Tip=m×TiprateTip = m \times Tip\, rate

STEP 3

Convert the tip percentage to a decimal value.
18%=0.1818\% = 0.18
Tip=m×0.18Tip = m \times 0.18

STEP 4

The total meal cost including the tip can be represented as the sum of the meal cost mm and the tip.
TotalMealCost=m+TipTotal\, Meal\, Cost = m + Tip

STEP 5

Substitute the expression for the tip from STEP_3 into the equation from STEP_4.
TotalMealCost=m+m×0.18Total\, Meal\, Cost = m + m \times 0.18

STEP 6

Factor out mm from the right side of the equation to simplify.
TotalMealCost=m(1+0.18)Total\, Meal\, Cost = m(1 + 0.18)

STEP 7

Now we have the equation that represents the total meal cost including the tip.
TotalMealCost=m(1.18)Total\, Meal\, Cost = m(1.18)

STEP 8

Since we know the total meal cost including tax is 5858 dollars, we can set the equation from STEP_7 equal to 5858.
58=m(1.18)58 = m(1.18)

STEP 9

To solve for mm, we need to divide both sides of the equation by 1.181.18.
581.18=m\frac{58}{1.18} = m

STEP 10

Calculate the value of mm.
m=581.18m = \frac{58}{1.18}

STEP 11

Perform the division to find the meal cost before tax and tip.
m=581.1849.15m = \frac{58}{1.18} \approx 49.15

STEP 12

Now that we have the meal cost before tax and tip, we can find the total cost of the meal including the tip by using the equation from STEP_7.
TotalMealCost=m(1.18)Total\, Meal\, Cost = m(1.18)

STEP 13

Plug in the value of mm into the equation.
TotalMealCost=49.15(1.18)Total\, Meal\, Cost = 49.15(1.18)

STEP 14

Calculate the total cost of the meal.
TotalMealCost=49.15×1.1857.997Total\, Meal\, Cost = 49.15 \times 1.18 \approx 57.997

STEP 15

Round the total cost to the nearest cent.
TotalMealCost$58.00Total\, Meal\, Cost \approx \$58.00
The total cost of the meal, rounded to the nearest cent, is $58.00.

Was this helpful?
banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ContactInfluencer programPolicyTerms
TwitterInstagramFacebookTikTokDiscord