Lesson 7­4 Notes completed.notebook
Warm Up
February 02, 2017
Lesson 7-4: Calculate Percent of a Quantity
1.) Write in agenda book
Goal: I can find the percent of a quantity.
2.) Turn Shaded Name Activity in
- Math paper in Period tray
- Name in pile next to tray
3.) Write 5.798 as a percent.
4.) Write 6.3 % as a decimal.
Feb 2­7:36 AM
Feb 1­10:17 AM
Remember, a percent is a ratio that is comparing a part to
To find percents of a quantity, we can use a ratio
the whole.
table. The "part" will be on top and the "whole" will
be on the bottom.
45% --> 45 for every 100
Part:
Whole:
Keywords to help us determine the part and whole:
Part -->
Whole -->
Feb 1­10:19 AM
Example 1: Find 10% of 90.
Feb 1­10:20 AM
Example 3: Find 150% of 18.
Example 2: Find 25% of 28
Feb 2­7:30 AM
Feb 2­7:31 AM
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Lesson 7­4 Notes completed.notebook
February 02, 2017
Word Problems
You try:
1.
1.) What is 75 % of 200?
A restaurant sells either hamburgers or
cheeseburgers. The restaurant served 50 burgers
last night, 30% of which were cheeseburgers. How
many cheeseburgers did the restaurant serve?
2.) What is 2% of 1,000?
Feb 2­7:32 AM
1.
1.
Tigers have a hunting success rate of about 10%. A
tiger successfully hunts 4 times in one week. How
many attempts did the tiger make?
Feb 2­7:33 AM
Josh has 10 T-shirts. He said that 40% of his T-shirts are
sea green. How many of Josh's T-shirts are sea green?
A Bengal tiger‛s tail is around 30% of its total length.
The total length of one Bengal tiger‛s tail is 90 cm.
Around how long is the tiger?
Feb 2­7:33 AM
Feb 2­7:49 AM
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