Julie, Kelly and Lou win some money at the Bingo in the ratios 2:5:12 respectfully. Kelly won £66 more than Julie. b) How much d

Question

Julie, Kelly and Lou win some money at the Bingo in the ratios
2:5:12 respectfully. Kelly won £66 more than Julie.
b) How much did they win altogether?

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Thanh Hà 4 years 2021-08-17T14:16:19+00:00 2 Answers 7 views 0

Answers ( )

  1. Giakhanh
    0
    2021-08-17T14:17:54+00:00
    Reply

    Answer:

    £418

    Step-by-step explanation:

    i answered part of this earlier

    julie = 2

    kelly = 5

    lou = 12

    5-2 = 3

    3 = £66

    £66/3 = £22

    2+5+12 = 19

    19 x £22 = £418

  2. Thunguyet
    0
    2021-08-17T14:17:59+00:00
    Reply

    Answer:

    £418

    Step-by-step explanation:

    The ratio can be expressed as 2x : 5x : 12x ( x is a multiplier ), then

    5x = 2x + 66 ( Kelly won £66 more than Julie )

    Subtract 2x from both sides

    3x = 66 ( divide both sides by 3 )

    x = 22

    Thus

    2x = 2 × 22 = £44

    5x = 5 × 22 = £110

    12x = 12 × 22 = £264

                           ————- +

                            £418 ← total amount won

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )