7.4.13

Last updated over 1 year ago
12 questions
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1. The depth of a lake is 15.8m.
a) Jade accurately measured the depth of the lake to the nearest meter. What measurement did Jada get?
*Round to the nearest whole number.

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1b. By how many meters does the measured depth differ from the actual depth?
*Subtract your answer from above from 15.8.

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1c. Express the measurement error as a percentage of the actual depth.
*Divide your answer from above by the actual depth (15.8) and multiply by 100%.

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2. A watermelon weighs 8,475 grams. A scale measured the weight with an error of 12% under the actual weight. What is the measured weight?

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3. Noah's oven thermometer gives a reading that is 2% greater than the actual temperature.
a) If the actual temperature is 325 degrees, what will the thermometer reading be?

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3b. If the thermometer reading is 76 degrees F, what is the actual temperature?

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4. At the beginning of the month, there were 80 ounces of peanut butter in the pantry. Now, there is 1/3 less than that. How many ounces of peanut butter are in the pantry now?

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5a. Fill in the table for side length and area of different squares.

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5b. Is the relationship between the side length of a square and the area of a square proportional?

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Exit Ticket
Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's height is 4 feet, 2 inches.

1. Should Clare's or the doctor's measurement be considered the actual height? Explain your reasoning.

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Exit Ticket
2. What was the error, expressed in inches?

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Exit Ticket
3. What was the error, expressed as a percentage of the actual height?