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

James Finch

Math - Developmental, Fall 2010

Instructor: Dr. Friendly

Current Score: 2/13

Due: Wednesday, August 18, 2010 23:15 EDT

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

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.
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Graph the number on the number line.
7

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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. 1/1 points All Submissions Notes Question: AufEssMath7 2.1.022.
Question part
Points
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1
1
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1/1
 
Find the LCM.
200, 120
Enter an exact number.
Your answer is correct.

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3. –/1 points Notes Question: AufEssMath7 2.1.062.
Question part
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Find the GCF.
48, 60, 96
Enter an exact number.

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4. –/1 points Notes Question: AufEssMath7 2.1.070.
Question part
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0/1
 
Joe Salvo, a lifeguard, works 4 days and then has a day off. A friend works 5 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
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0/1
 
Find 11/12 decreased by 2/15.
Enter a reduced fraction.

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6. –/2 points Notes Question: AufEssMath7 3.2.022.
Question part
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1 2
0/1 0/1
0/50 0/50
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0/2
 
A family has a mortgage payment of $815.83, a Visa bill of $215.17, and an electric bill of $89.00.
(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
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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 2004 than the number sent in 2001? 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
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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 0.4 is 0.2?

STEP 1: Set up the percent × base = amount equation.
n ×
Enter an exact number.
=0.2
STEP 2: Solve the equation for n.
n=0.2 ÷
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. 1/1 points All Submissions Notes Question: AufEssMath7 5.3.022.
Question part
Points
Submissions
1
1
1/50
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1/1
 
What percent of 400 is 28?
Enter an exact number.
Your answer is correct.%

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