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Laabri

7.4.15 (optional)

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Last updated about 2 years ago
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Asemmisa {{asɛmmisaAhyɛnsode}}
6.

4. The reading on a car's speedometer has 1.6% maximum error. The speed limit on a road is 65 miles per hour.

a) The speedometer reads 64 miles per hour. Is it possible that the car is going over the speed limit?

*Show your work/reasoning in the space provided.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

4. The reading on a car's speedometer has 1.6% maximum error. The speed limit on a road is 65 miles per hour.

b) The speedometer reads 66 miles per hour. Is the car definitely going over the speed limit?

*Show your work/reasoning in the space provided.

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

5. Here is a shape with some measurements in cm.

a) Complete the table showing the area of different scaled copies of the triangle.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

5b. Is the relationship between the scale factor and the area of the scaled copy proportional?

*Show your reasoning in the space provided.

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Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Exit Ticket

A fisherman weighs an ahi tuna (a very large fish) on a scale and gets a reading of 135 pounds. The reading on the scale may have an error of up to 5%. What are TWO possible values for the actual weight of the fish?

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11.

What is 5% of 135?

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12.

The possible values for the weight of the fish with an error of 5% and a reading of 135 is on the low end and on the high end.

Asemmisa {{asɛmmisaAhyɛnsode}}
1.

1. Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4 and 3/4 inches.

a) What is the largest the actual height of the plant could be?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

1. Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4 and 3/4 inches.

b) What is the smallest the actual height the plant could be?

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

1. Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4 and 3/4 inches.

c) How large could the percent error in Jada's measurement be?

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

2. Water is running into a bathtub at a constant rate. After 2 minutes, the tub is filled with 2.5 gallons of water. Write two equations for this proportional relationship. Use w for the amount of water (gallons) and t for time (minutes).

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

3. Noah picked 3 kg of cherries. Jada picked half as many cherries as Noah. How many total kg of cherries did Jada and Noah pick?