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sweet [91]
3 years ago
7

What is the value of x?

Mathematics
2 answers:
Mariulka [41]3 years ago
4 0

Answer:  x = 7

`Step-by-step explanation:

Because the figure shows two triangles that are similar. we can write and solve an equation of ratios:

 9 cm       72 cm

----------- = -----------

3x - 20      56 cm

Cross-multiplying, we get (3x - 20)(72 cm) = (9 cm)(56 cm) = 504 cm²

Dividing both sides by 72 cm, we get:

3x - 20 = (504 cm²) / (72 cm) = 7

Then 3x - 20 = 7, and 3x = 27.  Then x must be 9.

Vika [28.1K]3 years ago
4 0

Answer:

I just did the quiz. The answer would be 9. Hope this helps :)

Step-by-step explanation:

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The length of river frontage for each lot are 96.55 ft. 98.85 ft, 101.15 ft and 103.45 ft.

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