Worked examples
Two examples
Example 1
The bill at a restaurant is $46.50. What is a 20% tip?
- 20% = 0.2.
- 46.50 × 0.2 = 9.30.
Answer: $9.30
Example 2
The bill is $38.00. With a 15% tip, what is the total?
- The tip: 38 × 0.15 = 5.70.
- The total: $38.00 + $5.70.
Answer: $43.70
Where this is taught: Ratio, Proportion, and Percent, “Percents in everyday life”
The drill
Ten problems
How many:
Type the amount only, like 12.50; the unit is already there. Then press Check my answers at the bottom.Write each answer on the line. The answer key, with the reasoning, is on the last page.