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6th grade Math

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The sum of two decimal numbers is 3.9. Their difference is 0.9, and their product is 3.6. What are the two numbers?

  • 6th grade Math - ,

    the two numbers are 1.5 and 2.4
    a+b=3.9
    a-b=0.9
    a=0.9-b
    subbing in the second formula into the first
    0.9+b+b=3.9
    2b=3.0
    b=1.5
    a+1.5=3.9
    a=2.4

  • 6th grade Math - ,

    Thank you Bob!

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