jdmaclachlan jdmaclachlan
  • 24-02-2018
  • Mathematics
contestada

A wire that is 66 metres long has to be cut into two pieces. The ratio of the lengths of two pieces is 7 : 5. How long is each piece?

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Kaikerscupcake
Kaikerscupcake Kaikerscupcake
  • 24-02-2018
Hey there! :D

Add the ratios together. 

7+5= 12

66/12= 5.5

5.5*7= 38.5

5.5*5= 27.5

One piece is 38.5 meters and the other is 27.5 meters. 

I hope this helps!
~kaikers
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