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Thursday , December 1 st. Please Complete Warm Up and take out homework (Worksheet) Did you write down your homework?. Warm Up. Find the missing value to make a proportion 1. 2 . . Corny Joke of the Day. How did the hammerhead shark do on his quiz? He Nailed it!. Next Checkpoint is - PowerPoint PPT Presentation
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Thursday, December 1st
• Please Complete Warm Up and take out homework (Worksheet)• Did you write down your
homework?
WARM UPFind the missing value to make a
proportion1. 2. 45 6
x 3 12
8n
Corny Joke of the Day
How did the hammerhead
shark do on his quiz?
He Nailed it!
Next Checkpoint is
TOMORROW
Did you know?!?!?For most people, the ratio of thelength of their head to their total
height is 1:7. Use proportions to testyour measurements and see if they
match this ratio.
What did Rudolph do Wrong?Fives pounds of sugar
cookies cost $20 dollars, but he only needs 3
pounds
5$20 3lbs x
lbs
Homework Answers
Proportion Race□Each group will get
a stack of proportions
□You must find each missing value
□Then, you must put them from least to greatest based on the missing value
Word Problem Pass□Each group will be assigned one
word problem□ In your groups you must: Show your proportionShow work to show answer
Percent
What is percent?
Most states charge sales tax on items you purchase. Sales tax is a percent of the item’s price. A percent is a ratio of a number to 100.You can remember that percent means “per hundred.” For example, 8% means “8 per hundred,” or “8 out of 100.”
If a 1% sales tax goes to SPLOST that means:• For every $1.00 you spend, you pay $0.01 to splost.• For every $10.00 you spend, you pay $0.10 in sales tax.• For every $100 you spend, you pay $1 in sales tax.
Because percent means “per hundred,” 100% means “100 out of 100.” This is why 100% is often used to mean “all” or “the whole thing.”
Splost
Group ActivityEach group must make the
most create a sign that reads:
% equals ratio of a number to 100
Visual RepresentationUse a 10-by-10-square grid to model 17%.
A 10-by-10 square grid has 100 squares.
17% means “17 out of 100” or .
Shade 17 squares out of 100 squares.
17100
___
Writing percents as fractions
SOOOOO easy
1.Place number over 100
2.Simplify fractionEx: 40%=40/100=2/5
#1
Write 35% as a fraction in simplest form.
Write the percent as a fraction with a denominator of 100.
Write the fraction in simplest form.
35% = 35100
___
35 ÷ 5100 ÷ 5
_______ = 720 __
Written as a fraction, 35% is . 720 __
#2
Write 65% as a fraction in simplest form.
Write the percent as a fraction with a denominator of 100.
Write the fraction in simplest form.
65% = 65100
___
65 ÷ 5100 ÷ 5
_______ = 1320
__
Written as a fraction, 65% is . 1320 __
Writing percents as decimals
SOOOOO easy TOO
1.Move decimal place over TWICE to the
LEFT40% = .4
Try together!
60%
You Try
1.25%
2. 4%
3. 99%
4._____%
5._____%
ApplicationA store clerk has an 8% sales increase.
Write the increase as a fraction in simplest form and as a decimal.
Homework
Study
Workbook page