Final answer:
To leave a 19% tip on a $40 check, convert the percentage to a decimal (0.19), multiply by the meal cost to get a $7.60 tip, and add it to the original bill for a total of $47.60.
Step-by-step explanation:
The student asked how to calculate the total money to be paid for a $40 restaurant check with a 19% tip. To find the tip amount, convert the percentage to a decimal by dividing by 100, thus 19% becomes 0.19. Then, multiply this by the cost of the meal:
0.19 × $40 = $7.60
Now, add this tip to the original bill to find the total amount:
$40 + $7.60 = $47.60
Therefore, the total money to be paid, including the tip, is $47.60, rounded to the nearest cent.