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3 years ago

What is the actual height of the building shown in the model?

Mathematics

2 answers:

julsineya [31]3 years ago

7 0

Answer:

The actual height is 150ft

Step-by-step explanation:

Given

$Width : Height = 2cm : 5cm$

$Actual\ width = 60ft$

Required

Determine the actual height

Substitute 60ft for width in: $Width : Height = 2cm : 5cm$

$60ft:Height =2cm:5cm$

Express as fraction

$\frac{60ft}{Height} =\frac{2cm}{5cm}$

$\frac{60ft}{Height} =\frac{2}{5}$

Make height the subject

$Height = \frac{5}{2} * 60ft$

$Height = 5 * 30ft$

$Height = 150ft$

Charra [1.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

1 cm represents 30 ft

height of building = 5 cm × 30 ft/cm = 150 ft

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A community college has a math placement exam that has a mean of 65 and a standard deviation of 8.2. If a student takes the exam

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Answer:

The score that cuts off the bottom 2.5% is 48.93.

Step-by-step explanation:

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