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2 years ago

Pleeeaaaase brainliest to first person

Mathematics

2 answers:

Sergeeva-Olga [200]2 years ago

8 0

Answer:

4•8 feet

Step-by-step explanation:

Distance= first floor × second ÷ escalator

Distance= 12feet × 12feet ÷ 30 feet

= 12×12÷30

= 4•8 feet

KIM [24]2 years ago

3 0

Answer:

<em>Let the distance is x</em>

<u>Use Pythagorean to find x:</u>

x² = 30² - 12²
x² = 756
x = √756
x = 27.5 ft (rounded)

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3 years ago

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Sindrei [870]

Answer:

$x=16\dfrac{28}{37}\\ \\y=5\dfrac{1}{3}\\ \\z=7.5$

Step-by-step explanation:

The diagram shows three paralel lines which divide the large triangle into three similar triangles.

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$\dfrac{5}{z}=\dfrac{2}{3}\Rightarrow 2z=15,\ z=7.5\\ \\\dfrac{y}{8}=\dfrac{2}{3}\Rightarrow 3y=16,\ y=\dfrac{16}{3}=5\dfrac{1}{3}$

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$\dfrac{x}{20}=\dfrac{z+8}{z+8+3}\\ \\\dfrac{x}{20}=\dfrac{7.5+8}{7.5+8+3}\\ \\\dfrac{x}{20}=\dfrac{15.5}{18.5}\\ \\x=20\cdot \dfrac{155}{185}=20\cdot \dfrac{31}{37}=\dfrac{620}{37}=16\dfrac{28}{37}$

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