Question 1

Solve the problem.
-A machine can fill 1682 cartons of milk in 0.2 hour. How many cartons of milk can it fill per hour?

Accepted Answer

A)  336 cartons 
B)  8410 cartons 
C)  5607 cartons 
D)  1682 cartons 
A)  336 cartons 
B)  8410 cartons 
C)  5607 cartons 
D)  1682 cartons

Question 2

Find an equation of variation in which y varies inversely as x and the following is true.
-y = 7.25, when x = 0.52

Accepted Answer

A)    
B)    
C)    
D)  y = 13.94x 
A)    
B)    
C)    
D)  y = 13.94x

Question 3

Write the word or phrase that best completes each statement or answers the question.
 
-If the rational expression   represents the area of a rectangle and   represents the length of the rectangle, what rational expression represents the width?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 4

Find the ratio. Simplify, if possible.
-David's paycheck for a week at the video store was $122.09. If he worked 29 hours that week, what was his pay rate?

Accepted Answer

A)  $4.21/hour 
B)  $4.36/hour 
C)  $3.92/hour 
D)  $4.17/hour 
A)  $4.21/hour 
B)  $4.36/hour 
C)  $3.92/hour 
D)  $4.17/hour

Question 5

Add. Simplify, if possible.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

Find all numbers for which the rational expression is not defined.
-

Accepted Answer

A)  x = 0 
B)  x = 9 and x = -9 
C)  x = -3 and x = -4 
D)  x = 3 and x = 4 
A)  x = 0 
B)  x = 9 and x = -9 
C)  x = -3 and x = -4 
D)  x = 3 and x = 4

Question 7

Subtract. Simplify, if possible.
-

Accepted Answer

A)    
B)    
C)    
D)  x + 5 
A)    
B)    
C)    
D)  x + 5

Question 8

Solve the equation.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 9

Solve.
-The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 3.5 sec when the length is 49 inches, what is the period when L = 1.5625 inches?

Accepted Answer

A)  3.75 sec 
B)  0.625 sec 
C)  4.25 sec 
D)  4.5 sec 
A)  3.75 sec 
B)  0.625 sec 
C)  4.25 sec 
D)  4.5 sec

Question 10

Solve.
-The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 60 seconds are required to make a 3-by-5 enlargement, find the time required for a 5-by-8
Enlargement.

Accepted Answer

A)  160 sec 
B)  240 sec 
C)  200 sec 
D)  120 sec 
A)  160 sec 
B)  240 sec 
C)  200 sec 
D)  120 sec

Question 11

Divide and simplify.
-

Accepted Answer

A)    
B)    
C)  z - 4 
D)    
A)    
B)    
C)  z - 4 
D)

Question 12

Find all numbers for which the rational expression is not defined.
-

Accepted Answer

A)  None 
B)  c = 7 
C)  c = -7 
D)  c = 0 
A)  None 
B)  c = 7 
C)  c = -7 
D)  c = 0

Question 13

Find the reciprocal.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

Add. Simplify, if possible.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

Perform the indicated operation. Simplify, if possible.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 16

Find all numbers for which the rational expression is not defined.
-

Accepted Answer

A)  x = -5 and x = 7 
B)  x = 5 and x = -5 
C)  x = 5 and x = -7 
D)  x = 0 
A)  x = -5 and x = 7 
B)  x = 5 and x = -5 
C)  x = 5 and x = -7 
D)  x = 0

Question 17

Solve.
-The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 9 lb when the masses are 2 ft apart, what is the attraction when the masses are 6 ft
Apart?

Accepted Answer

A)  4 lb 
B)  1 lb 
C)  3 lb 
D)  2 lb 
A)  4 lb 
B)  1 lb 
C)  3 lb 
D)  2 lb

Question 18

Add. Simplify, if possible.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

Find the equation of variation if the following is true.
-Suppose r varies directly as s and r = 0.3333 when s = 1.

Accepted Answer

A)  r = 2s 
B)  r = 3s 
C)  r = 4s 
D)  r = 0.3333s 
A)  r = 2s 
B)  r = 3s 
C)  r = 4s 
D)  r = 0.3333s

Question 20

Find the LCM.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Solve the problem. -A machine can fill 1682 cartons of milk in 0.2 hour. How many cartons of milk can it fill per hour?

Find an equation of variation in which y varies inversely as x and the following is true. -y = 7.25, when x = 0.52

Write the word or phrase that best completes each statement or answers the question. -If the rational expression represents the area of a rectangle and represents the length of the rectangle, what rational expression represents the width?

Find the ratio. Simplify, if possible. -David's paycheck for a week at the video store was $122.09. If he worked 29 hours that week, what was his pay rate?

Add. Simplify, if possible. -

Find all numbers for which the rational expression is not defined. -

Subtract. Simplify, if possible. -

Solve the equation. -

Solve. -The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 3.5 sec when the length is 49 inches, what is the period when L = 1.5625 inches?

Solve. -The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 60 seconds are required to make a 3-by-5 enlargement, find the time required for a 5-by-8 Enlargement.

Divide and simplify. -

Find all numbers for which the rational expression is not defined. -

Find the reciprocal. -

Add. Simplify, if possible. -

Perform the indicated operation. Simplify, if possible. -

Find all numbers for which the rational expression is not defined. -

Solve. -The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 9 lb when the masses are 2 ft apart, what is the attraction when the masses are 6 ft Apart?

Add. Simplify, if possible. -

Find the equation of variation if the following is true. -Suppose r varies directly as s and r = 0.3333 when s = 1.

Find the LCM. -

Introduction

Introduction to Real Numbers and Algebraic Expressions

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Graphs, Functions, and Applications

Systems of Equations

More on Inequalities

Radical Expressions, Equations, and Functions

Quadratic Equations and Functions

Exponential Functions and Logarithmic Functions

Calculating Means and Medians of Data Sets

Filters

Exam 7: Rational Expressions and Equations

Solve the problem. -A machine can fill 1682 cartons of milk in 0.2 hour. How many cartons of milk can it fill per hour?

Find an equation of variation in which y varies inversely as x and the following is true. -y = 7.25, when x = 0.52

Write the word or phrase that best completes each statement or answers the question. -If the rational expression represents the area of a rectangle and represents the length of the rectangle, what rational expression represents the width?

Find the ratio. Simplify, if possible. -David's paycheck for a week at the video store was $122.09. If he worked 29 hours that week, what was his pay rate?

Add. Simplify, if possible. -

Find all numbers for which the rational expression is not defined. -

Subtract. Simplify, if possible. -

Solve the equation. -

Solve. -The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 3.5 sec when the length is 49 inches, what is the period when L = 1.5625 inches?

Solve. -The time T necessary to make an enlargement of a photo negative varies directly as the area A of the enlargement. If 60 seconds are required to make a 3-by-5 enlargement, find the time required for a 5-by-8 Enlargement.

Divide and simplify. -

Find all numbers for which the rational expression is not defined. -

Find the reciprocal. -

Add. Simplify, if possible. -

Perform the indicated operation. Simplify, if possible. -

Find all numbers for which the rational expression is not defined. -

Solve. -The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 9 lb when the masses are 2 ft apart, what is the attraction when the masses are 6 ft Apart?

Add. Simplify, if possible. -

Find the equation of variation if the following is true. -Suppose r varies directly as s and r = 0.3333 when s = 1.

Find the LCM. -

Introduction

Introduction to Real Numbers and Algebraic Expressions

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Graphs, Functions, and Applications

Systems of Equations

More on Inequalities

Radical Expressions, Equations, and Functions

Quadratic Equations and Functions

Exponential Functions and Logarithmic Functions

Calculating Means and Medians of Data Sets

Filters