Quiz 4-1: Evaluating and Translating Expressions

Evaluate the expression given the variable replacements. 

If x=9:

 $5x-12$  

Evaluate the expression given the variable replacements. 


If m=6 and n=5

 $\frac{n^2}{m-1}$  

Evaluate the expression given the variable replacements. 

If r = $\frac{4}{15}$  and s = $\frac{2}{3}$  

 $s+\frac{5}{6}r$  

Translate the words into an algebraic expression.

"The difference of fourteen and a number."

• 14+n

• 14-n

• 14n

• 14/n

Translate the words into an algebraic expression.

"The product of a number and five."

• 5+n

• n+5

• 5n

• $\frac{5}{n}$

Translate the words into an algebraic expression.

"Twenty-seven more than a number squared"

• 2n+27

• 27-n

• $n^2+27$

• $n^2-27$

Colin's bank account balance is  $d,$  dollars. If he deposits a check for $50, write an expression to represent his new balance.