Weegy: +
User: Solve. Write the solution in interval notation.
|x + 4| 6
User: Write as an absolute value inequality.
x is more than 7 units from 3
User: Solve:
|2x – 7| = 3
A. 5, 2
B. 5, –2
C. –5, 2
D. –5, –2
Weegy: x = -5
User: Solve:
|x + 3| = 2x + 1
A. 2
B. -4/3
C. 2, -4/3
D. 2, 4/3
Weegy: x = -5
User: Solve:
|x + 3| = 2x + 1
Weegy: x = -5
User: One computer printer can print a company's mailing labels in 40 minutes. A second printer would take 60 minutes to print the labels. How long would it take the two printers, operating together, to print the labels?
User: A musician is planning to market a CD. The fixed costs are $330 and the variable costs are $5 per CD. The wholesale price of the CD will be $8. For the artist to make a profit, revenues must be greater than costs. How many CDs, x, must be sold for the musician to make a profit?
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Question on: One computer printer can print a company's mailing labels in 40 minutes. A second printer would take 60 minutes to print the labels. How long would it take the two printers, operating together, to print the labels?
It will take 24 minutes to the two printers, operating together, to print the labels.
Solution:
Let x= time it takes both computers working together
Then both computers print at the rate of 1/x mailing labels per min
First computer prints at the rate of 1/40 mailing labels per min
Second computer prints at the rate of 1/60 mailing labels per min
So:
1/40 + 1/60 = 1/x multiply each term by 120x
3x+2x=120
5x=120
x=24 min- - - - -time required when both computers work together
CK
In 24 min first computer completes (1/40)*24=24/40 of the mailing labels
Added 3/23/2013 7:25:15 PM
3
|x - 4| = 2;
x - 4 = 2; x = 2 + 4; x = 6
-(x - 4) = 2; -x + 4 = 2; -x = 2 - 4; -x = -2; x = 2
x = 6 or x = 2
Added 7/23/2014 12:07:52 PM
This answer has been confirmed as correct and helpful.
3
|2x – 7| = 3;
2x - 7 = 3; 2x = 3 + 7; 2x = 10; x = 10/2; x = 5;
-(2x – 7) = 3; -2x + 7 = 3; -2x = 3 - 7; -2x = -4; x = -4/-2; x = 2
x = 5 or x = 2
Added 7/23/2014 12:09:49 PM
This answer has been confirmed as correct and helpful.
