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Decimals, SM_Bank 018

A hot air balloon is 25.2 metres high.

The length of the balloon section is 21.55 metres.
 

  
What is the height of the basket section?  (2 marks)

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`text(3.65 metres)`

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`text(Let)\ \ h =\ text(height of basket section)`

`h + 21.55` `= 25.2`
`:. h` `= 25.2-21.55`
  `= 25.2-22 + 0.45`
  `= 3.2 + 0.45`
  `= 3.65`

`:.\ text(The basket section is 3.65 metres high)`