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SVEN [57.7K]
3 years ago
10

The perimeter of a certain pentagon is 12.5 inches. Four sides of this pentagon have the same length, in inches, m, and the othe

r side has a length of 1.5 inches, as shown below.
Mathematics
1 answer:
luda_lava [24]3 years ago
7 0
12.5 - 1.5 = 11
11 divide by 4 = 2.75
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netineya [11]

Answer:

x = 40

Step-by-step explanation:

The figure shows two similar triangles. Thus, the side lengths of similar triangles are proportional to each other. Therefore:

\frac{24}{24 - 15} = \frac{x}{x - 25}

\frac{24}{9} = \frac{x}{x - 25}

Cross multiply

24(x - 25) = 9(x)

24x - 600 = 9x

Subtract 24x from each side

- 600 = 9x - 24x

- 600 = -15x

Divide both sides by -15

40 = x

x = 40

3 0
2 years ago
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When you have this many to do, a spreadsheet or calculator is helpful.

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5 0
3 years ago
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4 0
11 months ago
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Answer:

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