friday, january 5 th
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Friday, January 5 th. Please complete warm up Please have homework out (Finding percent worksheet) . Warm Up. 6% of what number is 4 70% of 30 is what number?. Corny Joke of the Day. What did the tree say to the math teacher? “Gee, I’m a tree”. What? Checkpoint #1 Similar figures - PowerPoint PPT PresentationTRANSCRIPT
Friday, January 5th
• Please complete warm up Please have homework out (Finding percent worksheet)
WARM UP1. 6% of what number is 4
2. 70% of 30 is what number?
Corny Joke of the Day
What did the tree say to the math
teacher?“Gee, I’m a tree”
What? Checkpoint #1 Similar figures
Indirect measurement
When? Monday, January 9th
Homework Answers Can you find my mistakes?
1.282.303.1.7
4.45.106.20
FlashcardsPercent Proportion rule
Percents Decimals
And Fractions Memory
Real Life Applications
There are 480 students in Sara’s school. If 70% of
the students participate in the fundraising program,
how many students participate in the
fundraising program?
Now solve: s 480
___ 70 100
___ =
100 • s = 70 • 480 100s = 33,600100s 100
____ 33,600 100
_____ = s = 336
Let s represent the number of students who participate in the fundraising program.The cross products are equal.s is multiplied by 100.Divide both sides of the equation by 100 to undo multiplication.
Since 336 is close to your estimate of 375, 336 is a reasonable answer.336 students participate in the fundraising program.
Answer
Tanner is 25% of the way through his exercises. If he has exercised for 20
minutes so far, how much longer does he have to work out?
is of
__ % 100
___ =
100 • 20 = 25 • m
25% of the exercises are completed, so 20 minutes is 25% of the total time needed.
The cross products are equal.
20 m
__ 25 100
___ = Set up a proportion. The “of” part is what you have been asked to find.
Answer
Whiteboard Race
Groups of 5
Classwork
Finish backside of worksheet