1 year ago

Y = f(x) = 2x Answer as a decimal

Mathematics

1 answer:

skad [1K]1 year ago

4 0

Answer:

insufficient data

Step-by-step explanation:

please give complete question

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2 years ago

How much of an alloy with 30% copper must be added to 25 pounds of a second alloy that is 20% copper to create a 27% alloy? 33.8

yuradex [85]

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58.33 lbs.

Step-by-step explanation:

There are already 25 lbs of alloy of copper

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Now available is

Copper Other metals

5 lbs 20 lbs

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Simplify to get

$\frac{5+0.3x}{25+x} =\frac{27}{100} \\\\Cross multiply:\\27(25+x) =100(5+0.3x)\\500+30x =675 +27x\\3x = 175\\x = 175/3 = 58.33 lbs$

Hence answer is 58.33 lbs should be added.

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2 years ago

Read 2 more answers