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3 years ago

4(0.5x+2.5y-0.7x-1.3y+4)

Mathematics

2 answers:

Yuki888 [10]3 years ago

6 0

-0.8x+4.8y+16
there ya go

Ymorist [56]3 years ago

3 0

Hope this helps. best of luck!

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3 years ago

A building 64 ft high casts a 288-ft shadow. Sarah casts a 18-ft shadow. The triangle formed by the building and its shadow is s

Anastaziya [24]

Answer:

The answer to your question is 4 ft

Step-by-step explanation:

Data

Building's shadow = 288 ft

Building's high = 64 ft

Sarah's shadow = 18 ft

Sarah's height = ?

Process

1.- Use proportions to solve this problem

$\frac{Sarah's height}{Sarah's shadow} = \frac{building's height's}{building's shadow}$

2.- Solve for Sarah's height

$Sarah's height = \frac{Sarah's shadow x building's height}{building shadow}$

3.- Substitution

$Sarah's height = \frac{18 x 64}{288}$

4.- Simplification

$Sarah's height = \frac{1152}{288}$

5.- Result

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