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3 years ago

Find x if AB = 9, BC = 2x - 5, and AC = x + 9

Mathematics

2 answers:

Oxana [17]3 years ago

5 0

Answer:

x = 5

Step-by-step explanation:

Using the fact that line segments AB and BC are parts of the whole line segment AC, we can write the following equation:

AB + BC = AC

Now, using the given values, we can substitute in for the equation and solve for x:

AB + BC = AC

9 + 2x - 5 = x + 9

2x + 4 = x + 9

x = 5

Thus, we have found that for these sets of equations for these line segments, our value for x should be 5.

Cheers.

drek231 [11]3 years ago

5 0

Answer:

x=5

Step-by-step explanation:

AB + BC = AC

9+ 2x-5 = x+9

Combine like terms

2x+4 = x+9

Subtract x from each side

2x+4-x = x+9-x

x+4 = 9

Subtract 4 from each side

x+4-4 = 9-4

x=5

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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mojhsa [17]

Answer:

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Step-by-step explanation:

The rate of change of area with respect to time is ...

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