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Rom4ik [11]
3 years ago
6

Lead metal can be extracted from a mineral called galena, which contains 86.6% lead by mass. A particular ore contains 68.5% gal

ena by mass. If the lead can be extracted with 92.5 % efficiency, what mass of ore is required to make a lead sphere with a
6.50cm radius?
Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0

Answer:

ds hj bfsj gjhbyuabfdbsybfy

Step-by-step explanation:

sdbhabjbgfybsbfsad gfhysabfubdfr

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When planning his crops, Farmer Tim knows that his 7 acres can support peas and carrots. He wants to make $7,000 from his crops.
dsp73
This is the concept of algebra, we are required to get the equation that would be a constraint in the system of equation,
The total amount that the farmer want to make is $7000
amount he can make per acre of land is $2000, the amount he can make per acre will $1000. The variable representing peas and carrots are p and c retrospectively;
The total amount made from this can be represented by the equation below;
Total amount made by p acres of peas will be:
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Total  amount will be given by:
2000p+1000c=7000

this can be simplified by dividing through by 1000 to get:
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3 years ago
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stiv31 [10]

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velikii [3]

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3 years ago
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Expand and simplify 4x + 2 (x - 5)
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Please help with triangles in a pic.
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