How do you simplify (d+5) +(d+5) +(d+5)?
1 answer:
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Given :
An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 50 g of an alloy containing 12% copper with 78 g of an alloy containing 92% copper.
To Find :
How many grams of copper are in the resulting mixture what percentage of the resulting mixture is copper.
Solution :
Mass of copper in 50 gm alloy = .
Mass of copper in 78 gm alloy = .
Total mass of copper, ( 6 + 76.44 ) gm = 82.44 gram.
Percentage of copper in resulting mixture :
Hence, this is the required solution.
Answer:
[see below]
Step-by-step explanation:
- All natural numbers, whole numbers, integers, fractions (with integers), and numbers with terminating or repeating decimals are rational.
- Irrational numbers cannot be written as fractions with integers. This includes non-germinating and non-repeating decimals.
Rational Numbers:
- 0.8
- 64
- 0 (it can be written as
)
- 32
- -19
- -100
- 3
- 7
- 175
- 2
- 6
- 12.67
- 1121
- 12
- 5
- 3/7
Irrational Numbers:
- 2.343443444...
- π
Hope this helps.