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I am Lyosha [343]
3 years ago
6

I need help with my math

Mathematics
1 answer:
vaieri [72.5K]3 years ago
6 0
Number 2 is A
Number 6 is true
Number 9 is D
Number 5 is B
Number 4 is B
Number 7 the x int is (2,0) the y int is (2,0)
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Seventh graders collected some gold sand on a class field trip.
satela [25.4K]

Answer:

Class 7A collected 4.8 ounces of pure gold.

Step-by-step explanation:

<u>Key skills required are: Percentages, Multiplication</u>

<u />

  1. We only need the information about Class 7A. They collected 40 oz that contains 12% gold.
  2. In other words, this means that 12% of that 40 oz gold sand is pure gold.

Here we have to do 12% x 40 to find the number of oz of pure gold. We first have to convert 12% into a decimal. Divide it by a 100 (or move the decimal point 2 places to the left) and you will get 0.12.

<em>Do 0.12 x 40 and you will get 4.8</em>

Therefore, there are 4.8 oz of pure gold in Class 7A's gold sand

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