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IM Grade 7 Unit 5 Quiz 3

Last updated over 2 years ago

5 Nsɛmmisa

2

2

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2.

The high temperatures in Weston for 7 consecutive days were −14°C, −10° C, −3°C, 6°C, 8°C, −4°C, and −11°C. What was the average high temperature for the 7 days?

4

1

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4.

A submarine is descending to examine the seafloor 2,100 feet below the surface. It takes the submarine 2 hours to make this descent. Write an equation to represent the relationship between the submarine's elevation and time.

1

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5.

Another submarine’s descent can be represented as y = -240x, where "y" is the elevation and "x" is time in hours. How long will it take this submarine to make the descent? (Note: the total elevation/depth is same as previous problem, 2100 ft.)

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Will the sign of the product of two negative numbers be negative or positive? Explain your answer.

Cannot tell; the sign depends on the absolute values of the factors.

Negative; if either of the factors is negative, their product is negative.

Negative; if the signs of the two factors are the same, their product is negative.

Positive; if the signs of the two factors are the same, their product is positive.

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3.

Match the expression with its correct value.

Draggable item		Corresponding Item