what- hakeem measures four ropes to find their lengths. The ropes each have the same length. First, he measures one rope in inches with a ruler.The rope is longer than the ruler, so he uses the ruler twice: 12 + 3 = 15?

what- hakeem measures four ropes to find their lengths. The ropes each have the same length. First, he measures one rope in inches with a ruler.The rope is longer than the ruler, so he uses the ruler twice: 12  + 3  = 15?
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Answer :

He multiplies the length of one rope by 4 to find the total length of the ropes in inches: 4(15) = 60Then he thinks to himself: I used the whole ruler two times and got the measurements 12 inches and 3 inches. I could have multiplied each of those measurements by 4 and then added: 4(12) + 4(3) = 48 + 12 = 60
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