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horrorfan [7]
4 years ago
11

Given equations A and B as 2/5x+y=12 and 5/2y-x=6, respectively, which expression will eliminate variable x?

Mathematics
2 answers:
balu736 [363]4 years ago
6 0
The answer is C.) A+2/5B.
Adding equation A to 2/5B will result in canceling the x terms, i.e. 2/5x + 2/5(-x) = 0.
Xelga [282]4 years ago
3 0
The answer is C.
If you multiply the second equation by 2/5 the variable x will cancel.
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butalik [34]

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4 0
3 years ago
How do you solve (3c)³ - (c - 4d)²; c = -2 AND d = 5
algol13
You just plug in the values.

[3*(-2)]^3 - (-2 - 4*5)^2

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3 years ago
Write the phrase as an expression the product of a number c and 5
kondor19780726 [428]

Answer:

c×5=5cis an expression the product ofa number c and 5

8 0
3 years ago
Suppose that we try to solve the matrix equation AX = B by using an inverse matrix, but find that even though the matrix A is a
Tanzania [10]

Answer:

  The system will be found to be inconsistent or dependent.

Step-by-step explanation:

The matrix A will have no inverse for two different reasons:

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