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15 December, 14:23

Manuel's gas tank is

2/9

full. After he buys

12

gallons of gas, it is

2/3

full. How many gallons can Manuel's tank hold?

+5
Answers (1)
  1. 15 December, 14:51
    0
    X represents the full tank

    so 2/9x+12=2/3x

    solve for x

    2/9x+12=2/3x

    try to convert 2/3 to a commom denomenator (bottom numer)

    2/3=6/9

    2/9x+12=6/9x

    subtract 2/9x from both sides

    12=4/9x

    mulitply both sides by 9 to get rid of fraciton

    108=4x

    divide by 4

    27=x

    it can hold 27 gallons
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