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Aufmann - Essential Mathematics with Apps 7/e (Homework)

Chris Read

Mathematics and Sciences, section 2, Fall 2010

Instructor: Mr. Cengage

Current Score: 0/13

Due: Wednesday, August 18, 2010 06:00 PM EDT

About this Assignment

Question
Points
1 2 3 4 5 6 7 8 9
0/1 0/1 0/1 0/1 0/1 0/2 0/1 0/4 0/1
Total
0/13

Description

Here are some textbook questions from Essential Mathematics with Applications, Student Support Edition 7/e by Richard N. Aufmann, Vernon C. Barker, Joanne S. Lockwood published by Brooks/Cole. Click here for a list of all of the questions coded in WebAssign.


Instructions

This demo assignment allows many submissions and allows you to try another version of the same question for practice.



1. –/1 points Notes Question: AufEssMath7 1.1.004.
Question part
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0/1
 
Graph the number on the number line.
4

Get Flash Player
Flash Player version 10 or higher is required for this question.
You can get Flash Player free from Adobe's website.


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2. –/1 points Notes Question: AufEssMath7 2.1.022.
Question part
Points
Submissions
1
0/1
0/50
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0/1
 
Find the LCM.
160, 120
Enter an exact number.

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3. –/1 points Notes Question: AufEssMath7 2.1.062.
Question part
Points
Submissions
1
0/1
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0/1
 
Find the GCF.
45, 30, 105
Enter an exact number.

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4. –/1 points Notes Question: AufEssMath7 2.1.070.
Question part
Points
Submissions
1
0/1
0/50
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0/1
 
Joe Salvo, a lifeguard, works 4 days and then has a day off. A friend works 6 days and then has a day off. How many days after Joe and his friend have a day off together will they have another day off together?
Enter an exact number.

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5. –/1 points Notes Question: AufEssMath7 2.5.038.
Question part
Points
Submissions
1
0/1
0/50
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0/1
 
Find 7/12 decreased by 1/15.
Enter a reduced fraction.

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6. –/2 points Notes Question: AufEssMath7 3.2.022.
Question part
Points
Submissions
1 2
0/1 0/1
0/50 0/50
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0/2
 
A family has a mortgage payment of $814.28, a Visa bill of $220.85, and an electric bill of $85.05.
(a) Calculate the exact amount of the three payments.
$
Enter an exact number.

(b) Round the numbers to the nearest hundred and use estimation to determine whether the sum you calculated is reasonable.
$
Enter a number.

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7. –/1 points Notes Question: AufEssMath7 3.5.104.
Question part
Points
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1
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0/1
 
The graph below shows the growth in the number of spam messages sent daily worldwide. Figures are given in billions. How many times greater is the number of spam messages sent daily in 2003 than the number sent in 2000? Round to the nearest tenth.
Enter a number.
 times greater

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8. –/4 points Notes Question: AufEssMath7 5.3.014.SBS.
Question part
Points
Submissions
1 2 3 4
0/1 0/1 0/1 0/1
0/50 0/50 0/50 0/50
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0/4
 
What percent of 4 is 0.8?

STEP 1: Set up the percent × base = amount equation.
n ×
Enter an exact number.
=0.8
STEP 2: Solve the equation for n.
n=0.8 ÷
Enter an exact number.
=
Enter an exact number.
STEP 3: Convert n to a percent.
n×100=
Enter an exact number.
%

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9. –/1 points Notes Question: AufEssMath7 5.3.022.
Question part
Points
Submissions
1
0/1
0/50
Total
0/1
 
What percent of 200 is 8?
Enter an exact number.
%

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