1. AIM: Percent Problems
Do Now
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2. UPCOMING EXAMS
1.) District Midterm Tuesday 2/7/12
2.) Algebra Placement Exam Tuesday
2/14/12 and Wednesday 2/15/12
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3. The article states that over one -third
of adults are obese and that is more
that 78 million people. How many
adults are there in America?
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4. The article states that over one -third
of adults are obese and that is more
that 78 million people. How many
adults are there in America?
Proportion:
Percent = Part
100 Whole
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5. 1
A.) What is 90 % of 180 ?
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6. 2
B.) 50 is 40 % of what number?
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7. 3 C.) 18 is what percent of 60 ?
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8. Percent Problems
Grade: «grade»
Subject: «subject»
Date: «date»
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9. 1
D.) 11 is 4 % of what number?
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10. 2
E.) 28 is what percent of 210 ?
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11. 3
F.) 22% of 105 is what number?
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12.
4 G.) The student population at King Middle School is 52 %
female. The total student population is 1225 students. How
many boys go to King Middle School?
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13. 5
H.) In a survey, 46 people, which was 20 % of those
surveyed, chose red as their favorite color. How many
people were surveyed?
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14. 6
I.) Kylie works part-time at a greenhouse. She spends 7 hours a
week watering plants and 9 hours a week transplanting seedlings.
She also spends 4 hours a week filing invoices. What percent of
her time is spent watering plants?
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15. BEFORE YOU LEAVE:
Error Analysis:
Find the mistake in the following problem, explain the mistake, and correct it.
To find 5% of 26, the proportion x = 5 would be used.
100 26
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16. Mr. Tjersland's Math 7
Homework: Castle Homework #13 due Wednesday
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17. AIM: Percent Problems
Percent = Part
100 Whole
A.) What is 90 % of 180 ?
x
100
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18. AIM: Percent Problems
Percent = Part
100 Whole
B.) 50 is 40 % of what number?
x
100
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19. AIM: Percent Problems
Percent = Part
100 Whole
C.) 18 is what percent of 60 ?
x
100
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