9th grade MATH

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The sum of 14 and twice a number y is equal to 78 ?

  • 9th grade MATH -

    14 + 2y = 78

    78 - 14 = 64

    2y = 64

    64 / 2 = 32

    y = 32

  • 9th grade MATH -

    Thanks

  • 9th grade MATH -

    14+2y=78
    -14 -14
    __________
    2y=64
    _ _
    2 2
    y=32

  • 9th grade MATH -

    a sales person drove 215 miles frpm new york to washington DC in 4.5 hours what is her average speed?

  • 9th grade MATH -

    Dfrom point a to point b=215miles
    VELOCITYaverage=change in distance/change in time
    =215miles/4.5hrs
    Approx.=47.8 or 48mph

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