Answer:
9n-(6n+4)
Step-by-step explanation:
n is number
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.
A. about 14
divide 72/5= 14.4 which rounds to 14
Answer:
Step-by-step explanation:
Answer:
B) Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value