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Algebra 1

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The Everton college store paid 1519 for an order of 41 calculators. The store paid 9 for each scientific calculator. The other, all graphic calculators cost the store 55 each. How many of each type of calculators was ordered?. Thank you

  • Algebra 1 -

    Let number of scientific calculators = s
    Let number of graphing caclulators = g

    s + g = 41
    9s + 55 g = 1519
    Multiply the first equation by 9
    9s + 9g = 369
    Now subtract #3 from #2
    46g = 1150
    g = 25
    s = 41 - g = ?

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