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:
Step-by-step explanation:
Not entirely sure about the first one, but I'll try the others:
2- log base 8 (8x) = log base 8 (8) + log base 8 (x) = 1 + log base 8 (x)
3 - log base 3 (5^x) = x log base 3 (5)
4 - log base 2 (5/x) = log base 2 (5) - log base 2 (x) = In 5 - In x
5 - log base 2 (2^x) = x log base 2 (2) = x · 1 = x
Answer:
1346cm
Step-by-step explanation:
First of all it is fringe, not french or friends.
Now, as we know that perimeter'P' of a rectangular is given by
P=2(length +width)
Given
length=435 cm
width=238 cm
P=2(435 +238) => 1346cm
Therefore, Rhiannon needs to purchase 1346cm of fringe
Answer:
B and D are the answer's.
Step-by-step explanation:
Answer:
59049 each term is the last multiplied by -3.
