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(Needs editing) Math 20-2 Final Exam Review

Authored by M Suwala

Mathematics

11th Grade

(Needs editing) Math 20-2 Final Exam Review
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53 questions

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1.

OPEN ENDED QUESTION

45 sec • 1 pt

Six cobs of corn cost $2.05. The unit cost, rounded to cents, is $ _____ per cob.

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Answer explanation

$6.60/cob

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A butcher shop sells a 3-pound package of chicken legs for $9.57. The supermarket sells chicken legs for $7.68/kg. (2.2 pounds per kg)

A pair of equations that could be used to determine which store has the lower price according to unit rate is:

A. $9.57 × 3 = $28.71/lb, $7.68 × 2.2 = $17.16/lb

B. 3 lb / $9.57 = $3.19 / 1 lb, 2.2 lb / $7.68 = $7.08 / 1 lb

C. $9.57 / 3 lb = $3.19 / 1 lb, $7.68 / 2.2 lb = $3.49 / 1 lb

D. $9.57 / 3 lb = $6.38 / 2 lb, $7.68 / 2.2 lb = $14.16 / 2 lb

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The interval of time when the average rate of change of temperature is 1°C per hour is

midnight to 4 AM

4 AM to 5 AM

5 AM to 10 AM

11:30 AM

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The interval of time when the average rate of change of temperature is the greatest is __i__ because the line segment __ii__. The statement above is completed by the information in row

midnight to 4 AM, is increasing

4 AM to 5 AM, has a positive slope of 4/1

5 AM to 10 AM, reaches a height of 10

10 AM to noon, has the steepest slope

5.

OPEN ENDED QUESTION

3 mins • 1 pt

Oil Well A pumps out oil at a rate of 2.75 barrels per hour. The graph below represents the rate, in barrels per hour, that oil is pumped from Well B.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Compare the rates, in barrel per hour, that oil is pumped from Well A and Well B.

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7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A company has an advertisement poster that they want to enlarge for a billboard. The width of the poster paper is 24 inches. The width of the large billboard is 28 feet. The scale factor used to enlarge the poster for the width of the poster to fit the width of the billboard is

1 : 14

14 : 1

24 : 28

6 : 7

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