Formative 1.B Review

Which of the following is the algebraic expression for the word phrase,

"twice the sum of x and 15"

• $2x+15$

• $2\left(x+15\right)$

• $2x-15$

• $2\left(x-15\right)$

Which of the following is the algebraic expression for the word phrase,

"The product of five and a variable x decreased by six"

• $5x+6$

• $5\left(x+6\right)$

• $5x-6$

• $5\left(x-6\right)$

Which of the following is the algebraic expression for the word phrase,

"The quotient of c and 15"

• $c+15$

• $c-15$

• $c\times15$

• $c\div15$

Which of the following is the algebraic expression for the word phrase,

"Ten more than five times a variable t"

• $10+5t$

• $5t+10$

• $10-5t$

• $5t-10$

Simplify

 $2\left[4^2-10+2\left(2\right)\right]-6\left(\frac{5}{6}\right)$  

•  $-1$  

•  $21$  

•  $13$  

•  $15$  

Simplify,

 $\left[3\left(5\right)^2-8\left(5\right)\right]+7\left(\frac{5}{7}\right)$  

• 35

• 40

• 125

• 190

Simplify,

 $\left[4^2+3^2+8\left(\frac{3}{8}\right)\right]\div\left(3^2-5\right)$  

• 6

• 7

• 8

• 9

Simplify,

 $12^2\div\left(9-1\right)-9\left(\frac{1}{9}\right)$  

• 14

• 16

• 17

• 18

Simplify,

 $16\left(\frac{3}{4}\right)+3^2\div\left(5-4+2\right)$  

• 7

• 15

• 13

• 21

Evaluate the following expression if

 $a=2,\ b=7,\$  and  $c=\frac{1}{4}.$  
 $4a+b-8c$  

• 13

• 15

• 34

• 47