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riadik2000 [5.3K]
2 years ago
8

Solve for x.

Mathematics
2 answers:
qwelly [4]2 years ago
8 0

Answer:

The answer is 30/7

Step-by-step explanation:

I did the test please tell me if Im wrong:)

kirill115 [55]2 years ago
7 0

How to get answer:

Expand -2\left(x+13\right)+9x:\quad 7x-26\\Expand -2\left(x+13\right):\quad -2x-26\\\\=-2x-26+9x\\Simplify -2x-26+9x:\quad 7x-26\\7x-26=4\\\mathrm{Add\:}26\mathrm{\:to\:both\:sides}\\7x-26+26=4+26\\\mathrm{Simplify}\\7x=30\\\\\mathrm{Divide\:both\:sides\:by\:}7\\\frac{7x}{7}=\frac{30}{7}\\Simplify\\x=\frac{30}{7}

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Answer:

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The area of a circle (A), measured in square inches, is directly proportional to the square of its diameter (d), measured in inches. That is:

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