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Find the sum of the infinite geometric series.\newline2+25+225+2125+2 + \frac{2}{5} + \frac{2}{25} + \frac{2}{125} + \dots\newlineWrite your answer as an integer or a fraction in simplest form.\newline__\_\_

Full solution

Q. Find the sum of the infinite geometric series.\newline2+25+225+2125+2 + \frac{2}{5} + \frac{2}{25} + \frac{2}{125} + \dots\newlineWrite your answer as an integer or a fraction in simplest form.\newline__\_\_
  1. Calculate Total Rolls: To solve this problem, we need to determine the number of rolls of tape the electrician should order to have at least 8,0008,000 centimeters of electrical tape. We do this by dividing the total amount of tape needed by the amount of tape on each roll.\newlineCalculation: 8,000cm8,000 \, \text{cm} (total tape needed) ÷2,000cm\div 2,000 \, \text{cm} (tape per roll) =4= 4 rolls
  2. Determine Rolls Needed: Since the electrician needs 8,0008,000 centimeters of tape and each roll contains 2,0002,000 centimeters, we divide the total amount needed by the amount per roll to find the number of rolls needed.\newlineCalculation: 8,000cm÷2,000cm=48,000 \, \text{cm} \div 2,000 \, \text{cm} = 4

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