Exam 2: Linear Equations and Inequalities in One Variable

Solve the problem. -For 2009, the government of Country X collected $ 2.6 trillion in revenues, but spent $ 8.9 trillion. Write the government's budget deficit as a signed number.

Write the statement in symbols, using x as the variable, and find the solution by guessing or by using trial and error. All solutions come from the list of integers between -12 and 12 inclusive. -2 times a number is -6.

Use the commutative or the associative property to complete the statement. State which property is used. --2 . 4 = 4 .

Find the sum. -2 6 + 2 2 2 + 7 4 + 1 7 8

Write the phrase as a mathematical expression. Use x to represent the number. Combine like terms if possible. -9 times a number added to -9, added to 6 times the sum of 5 times the number

Provide an appropriate response. -The table shows the number of pupils per teacher in selected counties in a certain state. For which counties are the values not less than 14.7?

Find all integer factors of the given number. -27

Use order of operations to simplify the expression. -( -5 - 8) - ( -12 + 18)

Decide whether the statement is an example of the commutative, associative, identity, inverse, or distributive property. - = 1

Find the average of the numbers. -What is the average of all the odd integers between -11 and 9, inclusive of both?

Answer the question as instructed. -I n an inequality using > or <, the inequality symbol should point toward the smaller number for the inequality to be true.

Write the statement in symbols, using x as the variable, and find the solution by guessing or by using trial and error. All solutions come from the list of integers between -12 and 12 inclusive. -The quotient of a number and 2 is 4.

Decide if the statement is true or false. --( -13) < -8

Select the smaller of the two given numbers. -,

State the phrase as a mathematical expression. Use x to represent the variable. -A number increased by two

Choose the one alternative that best completes the statement or answers the question. --

Use order of operations to simplify the expression. --6 -