



 
Hi Sylvia, For the first problem you need a scale for the picture, You can see other problems we have received concerning scale diagrams if you go to the Quandaries and Queries page on math Central and type the word scale into the Quick Search window. For your picture 1.5 cm represents 0.75 m so the scale is 0.75:1.5 m:cm which is 1:2 or 1/2 m per cm. For the second problem how many links do you need to cut in order to form a chain of length 6 × 4 = 24 links? Penny  


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