Suppose that the elimination method results in the equation 0=0. What does this indicate about the number of solutions to the system of equations?

If you have two different equations with the same two unknowns in each, you can solve for both unknowns. There are three common methods for solving: addition/subtraction, substitution, and graphing. [ Addition/subtraction method This method is also known as the elimination method. To use the addition/subtraction method, do the following: Multiply one or both equations by some number(s) to make

the number in front of one of the letters (unknowns) the same or exactly the opposite in each equation. Add or subtract the two equations to eliminate one letter. Solve for the remaining unknown. Solve for the other unknown by inserting the value of the unknown found in one of the original equations. Example 1 Solve for x and y. Adding the equations eliminates the y-terms. ] ]

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Asked 7/29/2012 10:13:28 AM

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An investor invested a total of $2,400 in two mutual funds. One fund earned a 7% profit while the other earned a 5% profit. If the investor's total profit was $140, how much was invested in each mutual fund?

Weegy: $1,000 was invested at 7% (1000*.07=70) and $1,400 was invested at 5% (1400*.05=70). (More)

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Asked 7/29/2012 9:59:11 AM

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solve by the elimination method: 9a+3b=18 -9a+b=18

Weegy: 9a+3b = 18
-9a+b = 18
- - - - - - -
4b = 36
b = 9
Substituting b = 9 in -9a+b=18
-9a + 9 = 18
-9a=9
a = -1
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Asked 7/29/2012 10:19:31 AM

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3u+2v=-15 2u+v=-6

Weegy: U = 1, V = -10. (More)

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Asked 7/29/2012 10:40:55 AM

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3u+2v=-17 2u+v=-7

Weegy: U = 1, V = -10. User: 3u+2v=-15 Weegy: U = 1, V = -10. (More)

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Asked 7/29/2012 10:28:56 AM

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A company sells DVDs d and CDS c. The figure shows a red, solid grahp of d+c=1750. THe blue, dashed graph shows a revenue of $15,750 received from selling d DVDs at $14 each and c CDs at $7 each. If the total number of DVDs and CDs sold is 1750, determine how many of each were sold to obtain a revenue of $15,750.

Weegy: as long as its compatible its almost a plug and play
[ ] (More)

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Asked 7/29/2012 10:59:56 AM

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