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enot [183]
2 years ago
15

Carlos ran 23.7 miles less than Lisa last week. Carlos

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
5 0

Answer:

Step-by-step explanation:

23.7 < m = 8.3      m > 23.7

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I’m supposed to solve this by eliminating the x variable
liberstina [14]

Answer:

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Step-by-step explanation:

Let's use elimination by addition / subtraction:

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-------------------

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Substituting 5 for y in the 2nd equation, we get:

6x + 7(5) = 11, or:

6x + 35 = 11, or

6x = -24, or x = -4.

Thus, the answer is (-4, 5).  Please double check to ensure you have copied down both system of equations and answer correctly.

Check:  Is (-4, 5) a solution to this system?

Subst. -4 for x and 5 for y in the first equation:

            -3(-4) - (5) = 7

               12 - 5 = 7  YES

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