Name: _____________________________________ Period _____ Date: _______________________
Objectives: Calculate a unit rate or unit price.
Use a unit rate or unit price to solve a real-world problem.
A unit rate is a rate in which the FIRST term is compared to ONE unit of
something else.
Example 1: $8 per movie ticket.
Example 2: 55 miles per hour
Find the unit rate for each of the following.
1) 350 miles in 7 hours. Find the unit rate for miles per hour.
2) 360 words in 9 minutes. Find the unit rate for words per minute.
Using a unit rate to solve a problem:
3) Who is faster? It took Jane 120 minutes to run 15 miles. In 42 minutes, John
was able to run 6 miles. Find the unit rate per mile and compare.
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A unit price is a unit rate in which the FIRST term is money. In other words, a
unit price is the amount of money it will cost for ONE of something.
Example 1: $3.29 per 1 gallon.
Example 2: 95 cents for 1 soda
Calculate the unit price for each of the following:
4) If 2 dozen donuts cost $10.80, how much will 1 donut cost?
5) Mrs. Smith bought an 8 pound pumpkin so she could make a pie. The pumpkin
cost Mrs. Smith $6.80. How much did the pumpkin cost per pound?
Using unit prices to solve real-world problems: Finding the best deal.
6) Suppose you are trying to find the best deal on pizza.
Dominos is selling large pizzas for 2 for $23.00.
At Ledo’s Pizza, you can buy 3 large pizzas for $33.00.
Who has the better deal? Explain how you know.
7) Look at the table. Who has the best deal on ice cream? Explain how you know.
Brand
Size & Price
Turkey Hill
$4.50 for
30 ounces
Breyers
$15.36 for
128 ounces
Ben &
Jerrys
$2.88 for
16 ounces
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Name: ________________________________________ Period _____ Date ___________________
Objective: Be able to find a percent of a number.
1)
Tabatha needs to score at least an 84% on her next test.
If there are 25 questions on the test, how many does she need to
answer correctly?
2)
The Smith family had dinner at Ledo’s Pizza and their meal cost $54.50.
Mr. Smith decided to leave the server a 20% tip.
a) How much money did Mr. Smith add as a tip?
b) What was the total bill after he added a tip?
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Name: ________________________________________ Period _____ Date ___________________
Challenge:
Dan and Wayne were shopping for new snow boards and trying to determine
the best deal.
They noticed that the Super Duper Sports Shop had the board they wanted.
It was on sale for 30% off the regular price of $250.
They also saw the same board at The Bayside Ski Shop on sale
for 40% off the regular price of $260.
Which store has the best deal?
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Name: ________________________________________ Period _____ Date ___________________
Objective: Calculate the whole, given the percent and the part.
a)
30
100
=
21
?
21 is ________ % of __________
c)
60
100
=
300
?
300 is ________ % of __________
b)
25
100
=
125
?
125 is ________ % of __________
d)
150
100
=
900
?
900 is ________ % of __________
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Name: ________________________________________ Period _____ Date ___________________
Objective: Calculate the whole, given the percent and the part.
1)
Suppose 80% of the students at Matapeake like to play in the snow.
If 240 out of all the students at Matapeake like to play in the snow,
what is the total number of students at Matapeake?
2)
Cathy has a summer job babysitting for her neighbor. Each week she likes
to put 70% of the money she makes into her savings account at the bank.
Last week she put $126 in her savings account. How much money did she make
last week?
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