Algebra Expressions

Erin can read at least 80 words per minute. Write an inequality to represent this situation. 

• x > 80

• x < 80

• x ≥ 80

• x ≤ 80

What inequality does the number line represent?

• x ≥ 3

• x > 3

• x < -3

• x ≤ -3

Simplify the expression.
3(5x - 8)

• 15x + 24

• 15x - 8

• 5x- 8

• 15x - 24

What inequality does the number line represent?

• x ≤ 4

• x ≥ -4

• x < -4

• x < 4

For a show, a band will be paid $150 plus $5 for each ticket sold.  Write an equation for their total payment (p) related to the number of tickets they sell (t).

• p = 150 + 5t

• p = 5 + 150t

• p + 5t = 150

• 5t - 150 = p

The opposite operation used in algebra to eliminate an operation (undo). 

• Converse operations

• Order of operations

• Inverse operations

• Converted operations

Ms. Henriquez's brother Alvaro is 5 years older than twice Ms. Henriquez age. Write an expression that represents the relationship of max's age in terms of Ms. Henriquez's age, x.

• 5x + 2

• 2x + 5

• 10x

• 2 + 7 + x

A letter or symbol that stands for a number in an equation is a

• addend

• mystery number

• expression

• variable

the opposite operation used in algebra to eliminate an operation (undo). 

• Converse operations

• shoes

• Inverse operations

• Converted operations

When signs are the same add and keep the sign. When signs are different subtract the absolute values and keep the sign of the larger absolute value.

• True

• False