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Sunny_sXe [5.5K]
3 years ago
11

If a silver alloy that costs $6.75 an ounce is

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0

9514 1404 393

Answer:

  88 ounces

Step-by-step explanation:

Let x represent the number of ounces of the less expensive alloy in the mix. Then the cost of the mix will be ...

  6.75x +10(55) = 8(55+x)

  110 = 1.25x . . . . . . subtract 440+6.75x

  88 = x . . . . . . . . divide by 1.25

88 ounces of $6.75/oz silver must be used.

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