7.4.14
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Last updated over 1 year ago
11 questions
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1. A student estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate?
1. A student estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error for her estimate?
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2. A radar gun measured the speed of a baseball at 103 miles per hour. If the baseball was actually going 102.8 miles per hour, what was the percent error in this measurement?
2. A radar gun measured the speed of a baseball at 103 miles per hour. If the baseball was actually going 102.8 miles per hour, what was the percent error in this measurement?
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3. It took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the app's estimate?
3. It took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the app's estimate?
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4. A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was actually in the tank?
4. A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was actually in the tank?
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5. For each story, write an equation that describes the relationship between the two quantities. a) Diego collected x kg of recycling, Lin collected 2/5 more than that.
5. For each story, write an equation that describes the relationship between the two quantities.
a) Diego collected x kg of recycling, Lin collected 2/5 more than that.
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5. For each story, write an equation that describes the relationship between the two quantities. b) Lin biked x km. Diego biked 3/10 less than that.
5. For each story, write an equation that describes the relationship between the two quantities.
b) Lin biked x km. Diego biked 3/10 less than that.
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5. For each story, write an equation that describes the relationship between the two quantities. c) Diego read for x minutes. Lin read 4/7 of that.
5. For each story, write an equation that describes the relationship between the two quantities.
c) Diego read for x minutes. Lin read 4/7 of that.
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6A. For diagram A, decide if y is an increase or decrease of x. Then, determine the percentage.
6A. For diagram A, decide if y is an increase or decrease of x. Then, determine the percentage.
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6B. For diagram B, decide if y is an increase or decrease of x. Then, determine the percentage.
6B. For diagram B, decide if y is an increase or decrease of x. Then, determine the percentage.
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7. Lin is making a window covering for a window that has the shape of a half circle on top of a square of side length 3 feet. How much fabric does she need?
Hint: Draw a picture to help you solve your problem.
7. Lin is making a window covering for a window that has the shape of a half circle on top of a square of side length 3 feet. How much fabric does she need?
Hint: Draw a picture to help you solve your problem.
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Exit TicketTo be labeled as a jumbo egg, the egg is supposed to weigh 2.5 oz. Priya buys a carton of jumbo eggs and measures one of the eggs as 2.4 oz. What is the percent error?
Exit Ticket
To be labeled as a jumbo egg, the egg is supposed to weigh 2.5 oz. Priya buys a carton of jumbo eggs and measures one of the eggs as 2.4 oz. What is the percent error?