Solving Equations questions

May 1st, 2015
Anonymous
Category:
Engineering
Price: $10 USD

Question description

Question 1

  1. The coefficients of the expression 2x3 - 5x2 + x  are _____.

A.    3, 2, 0

B.     2, 5, 0

C.     2, -5, 1

D.    -2, 5, -1

Question 2

  1. Combine like terms in the following expression: 7x + 3x + 2y - y.

A.    10x2 + y2

B.     10x + 3y

C.     10x + y

D.    10x - y

Question 3

  1. Use the distributive property to write the expression 5(3a – 2b – 4) without parentheses.

A.    15a + 10b + 20

B.     15a – 2b – 4

C.     15a – 10b – 20

D.    3a – 2b – 4

Question 4

  1. Evaluate 4+a^2-4*(b-3) for a = 5 and b = 2.

A.   -25

B.    85

C.    33

D.   18

Question 5

Translate the following statement into an appropriate algebraic equation: The number of dogs (d) in the animal

A=2c+4

B=2+4+c

C=2c-4

D=2(4+c)

  1. shelter is twice the sum of 4 and the number of cats (c).

Question 6

  1. Which algebraic expression represents the statement: the product of a number and twelve.

A.    n + 12

B.     n – 12

C.     12n

D.    n/12

Question 7

  1. Which equation best expresses the revenue for selling n books at $12.50 each?

A.    r+n=12.5

B.     r=n=12.5

C.     r=12.5/n

D.    r=12.5n

Question 8

1.      Write an equation to represent the pattern in the table below.


A.    p=s/5

B.     s=p+4000

C.     p=5s

D.    p=5/s

Question 9

  1. What is the value of x in the following equation: x+84=-22?

A.    -106

B.     -62

C.     62

D.    106

Question 10

  1. What is the value of x in the following equation: x+10=14?

A.   -4

B.    4

C.    14

D.   24

Question 11

  1. The solution x=71 is a solution to which of the following equations?

A.    x-9=2

B.     41=x-25

C.     x+24=95

D.    5=x-6

Question 12

  1. What is the value of x in the following equation, 1/5x=10

A.    2

B.     5

C.     15

D.    50

Question 13

  1. The solution x=6 is a solution to which of the following equations?

A.    5x=1

B.     3=15x

C.     -4x=-20

D.    60=10x

Question 14

  1. Solve the equation: b/5+15=45

A.    100

B.     150

C.     125

D.    75

 

Question 15

  1. What is the value of x in the following equation, 7(3x-13)=224

A.    32/3

B.     15

C.     19/3

D.    32

Question 16

  1. The distance between -5 and 3 on the number line can be found by which expression?

A.    -5-3

B.     |-5+3|

C.     -5+3

D.    |-5-3|

Question 17

  1. Simplify the expression: -|4+3-8|

A.    1

B.     -1

C.     15

D.    -15

Question 18

  1. Solve the following equation: |5x|=20

A.   -20, 20

B.    -4, 4

C.    4, 20

D.   -4, 20

Question 19

  1. Select the solutions to the following absolute value equation: |3x-6|+9=12

A.    x = -3 or x = -1

B.

Tutor Answer

(Top Tutor) Vincent A
School: Carnegie Mellon University
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