Question

Rosa and her sister went yo a diner for lunch. They each ordered a salad for $7.20 and a soda for $1.50. If they left their server a 20% gratuity, what was the total cost of their meal?

Answer 1

The total cost of Rosa and her sister's meal with a 20% gratuity is $20.88. They each ordered a salad and a soda, and then the tip was calculated based on the total cost of the meals combined.

Step-by-step explanation:

To calculate the total cost of Rosa and her sister's meal, including a 20% gratuity, we first need to find the cost of their meals without the gratuity. Each ordered a salad for $7.20 and a soda for $1.50. To find the cost for each person, add these two amounts together:

• 
  
• Salad: $7.20
• 
  
• Soda: $1.50

Their individual cost is:

$7.20 + $1.50 = $8.70

Now multiply this by 2 to get the cost for both:

$8.70 x 2 = $17.40

Next, we calculate the gratuity by converting the percentage to a decimal and multiplying by the total meal cost:

20% is the same as 0.20.

So, 0.20 x $17.40 = $3.48

Finally, we add the gratuity to the initial cost to find the total cost:

$17.40 + $3.48 = $20.88

The total cost of their meal with gratuity is $20.88.