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jonny [76]
1 year ago
7

If 2a + 7b+2c=16 and 2a + 3b +2c= 8, then b = ? (A)-2 (B) O (C) 2 (D) 4 (E) 6

Mathematics
1 answer:
Sauron [17]1 year ago
5 0

Answer:

  (C)  2

Step-by-step explanation:

Given equations 2a + 7b+2c=16 and 2a + 3b +2c= 8, you want to know the value of b.

<h3>Solution</h3>

The coefficients of 'a' and 'c' are the same in the two equations, so we can eliminate those variables by subtracting one equation from the other. We can keep the resulting coefficient of 'b' positive if we subtract the second equation from the first.

  (2a +7b +2c) -(2a +3b +2c) = (16) -(8)

  4b = 8 . . . . . . . simplify

  b = 2 . . . . . . . divide by 4

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3 years ago
Write a set of three different numbers that have a GCF of 16.
Lady_Fox [76]
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3 years ago
7 + 54 / 3 (2) Solve the problem
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See below

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Range: set of y values

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Step-by-step explanation:

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