ALGEBRA 1 SEM QUIZ 1

Which expression matches:

The sum of 6 and 5 doubled

• 2 x 6 + 5

• 2 x (6 + 5)

• 6 + (5 x 2)

What does the (E) in PEMDAS mean?

• experience

• exponents

• examples

• evidence

A _____________ is a symbol, usually a letter that stands for a number. 

• coefficient
• algebraic expression
• variable
• term

the quotient of a number and 9

• n + 9
• n - 9
• 9n
• n/9

Which type of math problem has an equal sign?

• equation

• expression

• inequality

• term

Translate this phrase into an algebraic expression.

The difference of 3 times a number and 7

Use the variable n to represent the unknown number.

• 3 - 7n

• 3n - 7

• 3n + 7

• 3 / 7n

Translate this phrase into an algebraic expression.

The quotient of twenty and a number

Use the variable n to represent the unknown number.

• 20/n

• 20-n

• n+20

• n-20

Translate this phrase into an algebraic expression.

2 times the difference of a number and 11

Use the variable t to represent the unknown number.

• 2t - 11

• 2(t - 11)

• 2(t / 11)

• 2 x t - 11

Translate this phrase into an algebraic expression.

2 times the sum of a number and 15

Use the variable B to represent the unknown number.

• 2(B+15)

• 2B+15

• 2B×15

• 2×15B

twice a number t, squared

• 2t

• t²

• 2x

• 2t²