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March 27, 2017

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Please help! It says- A machine takes 4.0 hours to make 8 parts. At that rate, how many parts can the machine make in 31.0 hours? Anybody want to explain it to me?

  • Math - ,

    One way to solve this is with a proportion.

    8/4 = x/31

    Cross multiply and solve for x.

    4x = 248

    x = 248/4

    x = 62 parts

  • Math - ,

    Thank you Ms. Sue! I appreciate it!

  • Math - ,

    You're welcome, Lizzy.

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