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Harrizon [31]
4 years ago
6

Jen bought 40 bracelets and 40 necklaces for $3,040. Mark bought 80 bracelets and 40 necklaces for $3,760.

Mathematics
1 answer:
iragen [17]4 years ago
5 0

Answer:

  • bracelet $18
  • necklace $58

Step-by-step explanation:

You are given that ...

  40x +40y = 3040

  80x +40y = 3760

Eliminate y by subtracting the first equation from the second:

  (80x +40y) -(40x +40y) = (3760) -(3040)

  40x = 720

  x = 18

Using the first equation to find y, we have ...

  40y = 3040 -40x

  y = 76 -x . . . . . divide by 40

  y = 76 -18 = 58

The cost of a bracelet is $18; the cost of a necklace is $58.

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What is the answer? I'll give brainiest to whoever is right
drek231 [11]

Answer:

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Step-by-step explanation:

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The slope of line F is 1/4 because:

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Gradient = 2-0 / 6- -2

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YOU MIGHT AVE A DIFFERENT METHOD BUT ANSWERS MUST BE THE SAME.

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3 years ago
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4 years ago
How do I write this expression:The quantity seven plus Z, squared
Dmitry_Shevchenko [17]

Answer:

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Step-by-step explanation:

A less ambiguous way to describe the quantity might be "the square of the quantity seven plus Z".

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  the quantity 7 plus Z: (7+Z)

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