Stephanie sold half of her comic books and then bought five more. She now has 23. How many comic books did she start with?
1 answer:
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Answer: 112 pieces
Step-by-step explanation:
1. Rewrite as a decimal. Divide the numerator and the denominator of the fractional part and add it to the integer part:
2. You know that each metal rod is 15 inches long. Then, you must divide the lenght of each one by 3.6:
3. The waste is 0.16, therefore, you obtain 4 pieces from a metal rod. The total pieces obtained from 28 metal rods are: