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Ket [755]
3 years ago
12

You sell necklaces and rings at a craft fair.You collect $312 selling a total of 28 pieces of jewelry. How many of each type of

jewelry did you sell cost for a necklaces $14 cost for rings $10 How many of each type of jewelry did you sell?
Mathematics
1 answer:
Nina [5.8K]3 years ago
3 0

Answer:

732 rings and necklace

Step-by-step explanation:

nun

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Hello there!

3x - y = 3
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Let start by adding -3x to both sides

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We cannot leave the variable with a negative sign. We must multiply both sides by -1

-y * -1= (3 - 3x)-1

y = 3x - 3

Substitute 3x -3 for y in -x+y=3

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2x - 3 = 3

2x = 3 + 3

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Now substitute 3 for x in y=3x -3

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schepotkina [342]

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Step-by-step explanation:

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r = 13.19

angleQ = cos^{-1}(\frac{13.19^{2}+11.04^{2}-6.52^{2}}{2(13.19)(11.04)})

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Answer:

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Log81 (9) = 1/2
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