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Alika [10]
3 years ago
7

Twice the difference of a number and 9 is 5 Use the variable c for the unknown number.

Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

C = 11.5

Step-by-step explanation:

1. (c - 9) 2 = 5

2. 2c - 18 = 5

3. 2c = 23

4. c = 11.5

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ycow [4]

Answer:

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Step-by-step explanation:

The slope of the new (perpendicular) line is the negative reciprocal of the slope of the given line, which appears to be 3.  Thus, the perpendicular line has the slope -1/3.

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Step-by-step explanation:

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