MTH 208 Week 2 Quiz

MTH 208 Week 2 Quiz

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1.

Solve.

2x + 8 = 3

2.

A clothing store offers a 20% discount on all purchases. What is the discount in dollars (before tax) for an item originally costing $21.00 dollars?

$25.20

$37.80

$16.80

$4.20

3.

Select the expression that is equivalent to -3(x – 1).

-3x – 1

-3x + 1

-3x – 3

-3x + 3

4.

A taxi company charges $2.40 for the first mile and $1.20 per mile for each additional mile. How much would the bill be for a 15 mile trip?

$19.20

$20.40

$34.80

$54.00

5.

A team needs to save up at least $400 for new uniforms and currently has $210. They decide to hold a fundraiser where they can earn $7 in profits for each item sold. What inequality could be solved to determine the minimum number, n, of items to be sold?

210 + 7n 400

210 + 7n < 400

210 + 7n ≤ 400

210 + 7n ≥ 400

6.

The temperature on a summer day is degrees Fahrenheit. The formula to covert temperature to degrees Celsius is C = 5/9(F-32). What is the corresponding temperature in degrees Celsius?

°C

°C

°C

°C

7.

A family travels at an average rate of 41 miles per hour for a given road trip. How long will it take them to reach their destination 246 miles away?

4 hours

5 hours

6 hours

7 hours

8.

Solve.

(2x – 4) = 3

x = 5.50

x = 11.50

x = –5.50

x = 9.50

9.

Solve the inequality.

– x – 8 -5

x < 23.4

x 23.4

x < –5.4

x –5.4

10.

Solve the inequality.

0.3(0.1x + 0.5) -0.3

x15

x15

x-15

x-15

11.

In the equation y = 4 x, if the value of x is increased by 2, what is the effect on the value of y ?

It is 2 more than the original amount.

It is 6 more than the original amount.

It is 16 times than the original amount.

It is 8 more than the original amount.

It is 8 times than the original amount.

12.

An airplane climbs at a rate of 66.8 feet per minute. It descends at twice the rate that it climbs. Assuming it descends at a constant rate, how many feet will the airplane descend in 30 minutes?

1002

4008

133.6

2004

96.8

13.

Which of the following equations has the same solution as the equation 2 x + 6 = 32 ?

2(x + 3) = 32

2x = 38

2(x – 3) = 16

x + 6 = 16

x – 3 = 16
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