Matematika

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tolong jawab ya please!!!no 7,8
tolong jawab ya please!!!no 7,8

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2 Jawaban

  • 3/10=9.8/x
    3x=98
    x= 32.66
    x= 33
    semoga membantu :))

  • [tex] \frac{(7x8)+(3xAB)}{7+3} = 9,8 [/tex]
    [tex]56+3AB = 98[/tex]
    [tex]3AB = 98 - 56[/tex]
    [tex]3AB = 42[/tex]
    [tex]AB = 14 cm[/tex]
    ------------------------------------------------------------------------------------------------------
    [tex] \frac{(8+x)}{8} = \frac{7}{4} [/tex]
    32 + 4x = 56 
    4x = 24 
    x = 6

    [tex]\frac{14}{6} = \frac{14}{y} [/tex]
    [tex]14y = 84[/tex]
    [tex]y = 6[/tex]

    x + y = 6 + 6 = 12
    The correct answer is C. 12


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