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  • 21-06-2020
  • Mathematics
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A model of a building uses a scale of 2 cm : 1.5m. The height of the building is 27 meters. What is the height of the model?

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mberisso
mberisso mberisso
  • 21-06-2020

Answer:

The height of the model should be 36 cm

Step-by-step explanation:

The ratio given by the scale "2 cm : 1.5 m", is what we need to use to write a proportion and solve for the unknown height "h". This means that 2 cm is to 1.5 meters, as "h" cm is to 27 meters, which can be written in math form with the following proportion, and solved for the unknown:

[tex]\frac{2\,cm}{1.5\,m} =\frac{h}{27\,m} \\\frac{2\,*\,27}{1.5} \,cm\\h= 36\,cm[/tex]

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