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Murrr4er [49]
4 years ago
13

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of

x? 6x + 5y = 2 4x + 2y = 8
Mathematics
2 answers:
Svetach [21]4 years ago
6 0

Answer:

Multiply each equation by the coefficient of y in the other one.  

Step-by-step explanation:

(1)  6x + 5y = 2

(2) 4x + 2y = 8

Multiply each equation by the coefficient of y in the other one.

Multiply (1) by 2 and (2) by 5.

(3)   12x + 10y =   4

(4) 20 x + 10y = 40     Subtract (3) from (2)

                8x = 36      Solve for x

                  x = 9/2

ozzi4 years ago
3 0

Answer:

Subtract 5 times the first equation from 2 times the second equation

Step-by-step explanation:

2(6x + 5y = 2)

5(4x + 2y = 8)

12x + 10y = 4

20x + 10y = 40

Subtracting the second equation from first gives:

−8x = −36

x =  

−36

−8

x =  

9

2


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Answer:

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3 years ago
What is the result when the number 40 is increased by 10%?
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7 0
3 years ago
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seropon [69]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Peirce swims 10 laps in a pool in 8 minutes how much time does it take him to swim 1 lap
Jobisdone [24]

10 laps in 8 minutes

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7 0
3 years ago
1) Find the lump that must be deposited today to have a future value of $ 25,000 in 5 years if funds earn 6 % componded annually
Hoochie [10]

Answer: $ 18681.45

Step-by-step explanation:

Given: Future value : FV=\$25,000

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\text{Future value}=P(1+i)^n, where P is the initial amount deposited.

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3 years ago
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