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

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.
1b. By how many meters does the measured depth differ from the actual depth?
*Subtract your answer from above from 15.8.
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?
5a. Fill in the table for side length and area of different squares.

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.
Exit Ticket
2. What was the error, expressed in inches?
Exit Ticket
3. What was the error, expressed as a percentage of the actual height?
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%.
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?
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?
3b. If the thermometer reading is 76 degrees F, what is the actual temperature?