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John is working at a hair salon and building a tool kit. There are 1010 hair dryers and 22 straighteners to choose from. How many different kits can John make that use one of each item?\newline_____ kits

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Full solution

Q. John is working at a hair salon and building a tool kit. There are 1010 hair dryers and 22 straighteners to choose from. How many different kits can John make that use one of each item?\newline_____ kits
  1. Determine choices: Determine the number of choices for hair dryers and straighteners.\newlineJohn has 1010 choices of hair dryers and 22 choices of straighteners.
  2. Use counting principle: Use the fundamental counting principle.\newlineTo find the total number of different kits John can make, multiply the number of choices for hair dryers by the number of choices for straighteners.\newlineTotal number of kits == Number of hair dryers ×\times Number of straighteners\newlineTotal number of kits =10×2= 10 \times 2
  3. Perform multiplication: Perform the multiplication to find the total number of kits.\newlineTotal number of kits = 10×2=2010 \times 2 = 20

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