NAME _____________________________________________ DATE ____________________________
2-2 Homework Practice
PERIOD ____________
Due Friday 10/16
The Percent Proportion/Equation
Tuesday 10/13
Determine each number. Round to the nearest tenth if necessary.
1. Mallorie has $3 in her wallet. If this is 10% of her monthly allowance, what is her monthly
allowance?
2. Of the 125 guests invited to a wedding, 104 attended the wedding. What percent of the
invited guests attended the wedding?
3. The memory card on Melcher's digital camera can hold about 430 pictures. Melcher used 18% of the memory card
while taking pictures at a family reunion. About how many pictures did Melcher take at the family reunion?
Round to the nearest whole number.
4. Use the table shown.
a. The area of the Indian Ocean is what percent of the area of the Pacific
Ocean? Round to the nearest whole percent.
b. If the area of the Arctic Ocean is 16% of the area of the Atlantic
Ocean, what is the area of the Arctic Ocean? Round to the nearest
whole million.
Course 2 • Chapter 3
Apply Proportionality to Percent
Ocean
Area
(square miles)
Pacific
64 million
Atlantic
32 million
Indian
25 million
NAME _____________________________________________ DATE ____________________________
PERIOD ____________
The Percent Proportion/Equation
Wednesday 10/14
Determine each number. Round to the nearest tenth if necessary.
5. A baseball player was at bat 473 times during the regular season. If he made a hit 31.5% of
the times he was at bat, how many hits did he make during the regular season? Round to
the nearest whole number if necessary.
6. Use the graph shown. The total enrollment at Central High School
is 798 students.
a. About what percent of the students at Central High are
freshmen? Round to the nearest tenth if necessary.
b. About what percent of the students at Central High are
seniors? Round to the nearest tenth if necessary.
Percent of Change
Wednesday 10/15
For Exercises 7-, determine each percent of change. Round to the nearest whole percent if
necessary. State whether the percent of change is an increase or decrease.
7. 8 feet to 10 feet
8. 136 days to 85 days
______ increase or decrease
_________increase or decrease
9. Recent developments in surgical procedures change the average healing time for some
operations from 8 weeks to 3 weeks.
__
___________________ increase or decrease
10. The city added an extra lane in each direction to the 5-lane road.
(Draw a picture to help)
___________________ increase or decrease
Course 2 • Chapter 3
Apply Proportionality to Percent