CHAPTER 2

Review Game!

Problem 1

With the following table, what is an algebraic expression that represents the table?

p ?

1 7

2 14

3 21

Problem 2

Translate the following words into an algebraic expression (make sure to tell what your variable represents):

Mom works out for the same length of time each day. How long does she work out in a

week?

Problem 3

Evaluate the expression to find the missing value in the table:

w w × 3 +10

4 22

5 ?

6 28

Problem 4

Determine whether the given value of the variable is a solution.

= 6 for

Problem 5

Kent earns $6 per hour at his after-school job. One week, he worked 12 hours and received a paycheck for $66. Determine if Kent was paid the correct amount of money. (Hint: $6 · hours = total pay).

Problem 6

Solve the following equation:

Problem 7

What is the value of ?

Problem 8

Alyssa has a temperature that is 2°C higher than normal body temperature. If Alyssa’s temperature is 39°C, what is normal body temperature?

Problem 9

Solve the following equation:

Problem 10

Look at the equation worked out below. What did the student do wrong? What is the correct answer?

- 17 - 17 34 = n

Problem 11

Solve the following equation:

Problem 12

Arthropods have segmented bodies. In centipedes and millipedes, all of the segments are identical. Millipedes have 4 legs per segment. The record number of legs on a millipede is 752. How many segments did this millipede have?

Problem 13

Solve the following equation:

Problem 14

The area of Danielle’s garden is one-twelfth the area of her entire yard. The area of the garden is 10 square feet. Let y represent the area of the yard. Find the area of the yard.

Problem 15

If there are 42 gallons of oil in one barrel, how many gallons of oil are in 42 barrels?

Problem 16

What is the definition of a variable? Give an example of a variable.

Problem 17

Which number is the greatest?

A. 12,301,542B. 12,381,536C. 12,311,518D. 12,385,501

Problem 18

Write the phrase as a numerical or algebraic expression:

multiplied by 5

Problem 19

Write the phrase as a numerical or algebraic expression:

Problem 20

Determine whether the given value of the variable is a solution.

for

Problem 21

Air typically has about 4,000 bacteria per cubic meter. If your bedroom is 30 cubic meters, about how many bacteria would you expect there to be in the air in your bedroom?

Problem 22

Find an expression for the following table:

s ?

36 3

48 4

60 5

72 6

Problem 23

Write the phrase “the quotient of n and 6” as an algebraic expression. Then evaluate the expression for .

Problem 24

What is the value of ?

Problem 25

Which of the following has a solution of 7?