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31 October, 04:59

If 6 pears and 5 oranges cost $1.87 and 12 pears and 2 oranges cost $1.90, how much would 3 pears and 3 oranges cost?

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  1. 31 October, 05:07
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    I'm going to do elimination to find the price of one pear and one orange.

    6p + 5o = 1.87

    12p + 2o=1.90

    I'm going to multiply the first equation by - 2.

    -12p-10o = - 3.74

    12p + 2o = 1.90

    -8o = - 1.84

    -1.84: - 8 =.23 = o

    12p + 2 (.23) = 1.90

    12p +.46 = 1.90

    12p = 1.44

    p=.12

    A pear equals. 12, while an orange equals. 23.

    3*.12 =.36

    .23 * 3 =.69

    .69 +.36 = 1.05

    It would cost $1.05.
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