2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?

Tip: $7.77

Percentage of bill: 18.5%

Step-by-step explanation:

Because the total is 49.77 and the total is the bill + tip, then the tip is 49.77 - 42 or $7.77. To find the percentage, we just calculate 7.77/42 as a percentage to get 1.11/6 = (111/6)% or 37/2 percent or 18.5%.

The tip was 7.77 dollars, which represent 18.5% of the value of the bill

Step-by-step explanation:

Dollars paid as tip

$49.77 - $42 = $7.77

$42 represent 100% of the bill

$7.77 x

x = (7.77/42)*100% = 18.5%