064 Finding a Number When the Percent is Known 2010.notebook 1 November 29, 2012
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064 Finding a Number When the Percent is Known 2010.notebook
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Homework #10Finding Percents Worksheet
Time to Check it!!
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1. What is 80% of 165? 132
2. 15% of what number is 6? 40
3. 34 is what percent of 85? 40%
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4. What is 20% of 8? 1.6
5. 50% of what number is 931? 1,862
6. 190 is what percent of 304? 62.5%
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7. What is 32% of 6350? 2032
8. 49 is what percent of 100% 49%
9. 2 is what percent of 200? 1%
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10. What is 150% of 30? 45
11. 17% of 200 is what number? 34
12. 16 is what percent of 42? 38.1%
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42 is 5% of what number?Choose a method:
Proportion Equation
5 42100 n= 42 = 5% n.
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8% of what number is 24?
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42 is 175% of what number?
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The king cobra can reach a length of 18 feet. This is only about 60% of the length of the largest reticulated python. Find the length of the largest reticulated python.
Choose a method:Proportion Equation
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You have now seen all three types of percent problems.
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Solving Word Problems Using Percents
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1. A survey asked 180 people if they like winter. 45 people said yes and the rest said no. What percent said yes?
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2. At football practice Ryan made 24 field goals, which was 80% of the field goals attempted. How many field goals did Ryan attempt?
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3. Jackie spends 25% of her monthly salary on rent. Her rent is $650. What is her monthly salary?
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4. A raw apple weighing 5.3 oz contains 4.45 oz of water. What percent of an apple is water?
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5. In 2003 the population of Fairbanks, Alaska was 30, 970. This was about 491% of the population of Kodiak, Alaska. What was the population of Kodiak in 2003?
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6. Lisa's starting pay was $8.50 per hour. After 8 months she was given a 6% raise. How much per hour was Lisa's raise?
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7. On his last test, Alex answered 80% of the questions correctly. If there were 80 questions on the test, how many did he answer correctly?
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