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It takes 5.6 litres of paint to paint a chimney that is 3m high. what is the tallest similar chimney that can be painted with 8 litres of paint?​

 Jan 19, 2020
 #1
avatar+9087 
+2

It takes 5.6 litres of paint to paint a chimney that is 3m high. what is the tallest similar chimney that can be painted with 8 litres of paint?​

a

Um einen 3 m hohen Schornstein zu streichen, werden 5,6 Liter Farbe benötigt. Was ist der höchste ähnliche Schornstein, der mit 8 Litern Farbe gestrichen werden kann?

 

Hello Guest!

 

\((3m)^2:x^2=5.6l:8l\\ x^2=\frac{8l\cdot 9m^2}{5.6l}\)

\(x=3.586m\)

 

A 3.586m high chimney can be painted with 8l of paint.

wink  !

 Jan 19, 2020
edited by asinus  Jan 19, 2020
edited by asinus  Jan 19, 2020
edited by asinus  Jan 19, 2020
 #2
avatar+21681 
+3

3 m is to 5.6 l     as     x   is to 8 l

 

3 / 5.6  =  x / 8  

 

3/5.6 * 8 = x = 4.29 m

 Jan 19, 2020
 #3
avatar+9087 
+2

Hello ElectricPavlov,

 

what is the tallest similar chimney that can be painted with 8 litres of paint?​

 

\(Area \sim (distance) ^ 2\\\) 

Greetings laugh  !

asinus  Jan 19, 2020
edited by asinus  Jan 19, 2020

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