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Juli2301 [7.4K]
3 years ago
5

What is the solution of this system of linear equations? 3y=3/2x+6 1/2y-1/4x=3.

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

No solution

Step-by-step explanation:

Please, separate equations with a comma, or the word "and," or a semicolon.

Next, determine the LCD and multiply both equations by it, so as to elimiinate the fractional coefficients.

3y=3/2x+6 1/2y-1/4x=3

should be written as the system

   3y=(3/2)x+6         Use parentheses around the fraction for clarity

(1/2)y-(1/4)x=3            Same:  use parentheses

The LCDs here are 2 (for the first equation) and 4 (for the second equation).  Multiply the first equation by 2 to eliminate the fractions:

   3y=(3/2)x+6         →   6y = 3x + 12, and

4[ (1/2)y-(1/4)x=3 ]     →   2y  -  x   = 12

Let's use the substitution method to solve this system.  Solve the 2nd equation for x, obtaining x = 2y - 12.  Substitute 2y - 12 for x in the 1st equation 6y = 3x + 12:

6y = 3(2y - 12) + 12, or

6y = 6y - 36 + 12

This reduces to 0 = -24, which is never true.  Thus,

this system has NO solution.

 

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Step-by-step explanation:

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3 years ago
A jar contains 46 quarters and pennies. The total value of the coins is $4.30. Which system of equations can be used to find p,
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Answer:

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Step-by-step explanation:

q= quarters

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set up a system of equations. One equation is for total value, the other is total # of coins.

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0.25q + 0.01p = 4.30 -> multiply this equation by 4 so you can subtract from the top equation

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subtract the bottom equation from the top

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divide by 0.96

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substitute p in the top equation

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3 years ago
In a certain isosceles right triangle, the altitude to the hypotenuse has length
Law Incorporation [45]

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Now we just simplify:

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8 0
4 years ago
Explain your answer​
N76 [4]

x is equal to - 2/3 after collecting like terms

5 0
3 years ago
I need help on this I am just going to use the picture
Radda [10]

Answer:

D

Step-by-step explanation:

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y = \frac{2x-3}{5}

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x = \frac{5y+3}{2}

Change y back into term of x, hence

f^{-1}(x) = \frac{5x+3}{2} → D

4 0
3 years ago
Read 2 more answers
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