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leva [86]
3 years ago
10

Pls help me due soon

Mathematics
1 answer:
KIM [24]3 years ago
5 0

Answer:

I'm pretty sure it b

Step-by-step explanation:

I think its b

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A jeweler needs 50 ounces of a 21% silver alloy. Find the amount of a 12% silver alloy and the amount of a 24% silver alloy he s
sergij07 [2.7K]

Answer:

  • 12.5 ounces of 12% alloy
  • 37.5 ounces of 24% alloy

Step-by-step explanation:

Let x represent the amount (in ounces) of 24% alloy in the mix. Then the amount of 12% alloy is (50 -x). The amount of silver in the mix is ...

  24%·x + 12%·(50 -x) = 21%·50

  12x = 450 . . . . . . simplify, multiply by 100 (to eliminate %), and subtract 600

  x = 37.5 . . . . . . . divide by 12

The jeweler needs to mix 37.5 ounces of 24% silver alloy with 12.5 ounces of 12% silver alloy to make 50 ounces of 21% silver alloy.

4 0
3 years ago
HELPDetermine the equation of the line shown in the graph:y = −1y = 0x = −1x = 0
astra-53 [7]

in this problem we have a vertical line

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8 0
1 year ago
Find the surface area of the Rectangular Pyramid. Please see the attachment, of course 45 yards ^2 is not the correct answer. Th
zheka24 [161]

Answer:

Surface area = 39 yards²

Step-by-step explanation:

∵ the surface area of the pyramid = 1/2 pl + base area

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∵ Perimeter of the base = 4 × 3 = 12 yards

∵ Slant height = 5 yards

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8 0
3 years ago
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A certain recipe calls for 3 tablespoons of an ingredient in 22 fl oz of liquid. How
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Answer:

-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2

Step-by-step explanation:

-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2-11x-7=-3x^2

5 0
2 years ago
A factory worker packed 12 boxes at a constant rate, took a 30-minute break, and then continued packing the boxes at twice the r
Daniel [21]

Answer:

A - 4.5<t<24

Step-by-step explanation:

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