please help

The Everton college store paid $1859 for an order of 49 calculators. The store paid $11 each for scietific calculators. The others, all graphing calculators, cost the store $55 eaach. How many of each type of calculator ws ordered? Please answer in detail so that I can see what is wrong and where. thank you.

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asked by Shelly
  1. Let we have S scientific and G graphing
    calculators. Then
    S+G=49
    11S+55G=1859

    S=49-G
    11(49-G)+55G=1859

    S=49-G
    44G=1859-539

    G=30
    S=19

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