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anonymous

  • one year ago

the math club has 57 memebers who are in 6 or 7 grade there are twice as many 6 graders as 7 graders

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  1. welshfella
    • one year ago
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    I guess you need to find the number of 6th and 7th grades in the club right?

  2. anonymous
    • one year ago
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    Let's substitute x for 7th graders.

  3. anonymous
    • one year ago
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    |dw:1440317574984:dw|

  4. anonymous
    • one year ago
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    We know that the total number of 6th-grade members and 7th-grade members is 57 members. So now we can write an equation.|dw:1440318115603:dw|

  5. anonymous
    • one year ago
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    Finally, you can solve the equation by isolating x to get the number of 7th-grade members. After that, substitute the number of 7th-grade members for x in 2x to get the number of 6th-grade members.

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