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A piece of ribbon is cut into two pieces in the ratio 3:7. The length of the shorter piece is 45cm. Calculate the length in cm of the longer piece of ribbon.​
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A piece of ribbon is cut into two pieces in the ratio 3:7. The length of the shorter piece is 45cm. Calculate the length in cm of the longer piece of ribbon.​

User Kirsten Jones
by
5.8k points

1 Answer

5 votes

Answer:

105 cm

Explanation:

3/7 = 45/x

cross-multiply:

3x = 315

x = 105

User Matt Rowles
by
4.7k points
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