Answer:
slope = -3/2
Step-by-step explanation:
The slope of a line passing through the two points P=(x1,y1) and Q=(x2,y2) is given by m=y2−y1/x2−x1.
We have that x1=2, y1=5, x2=8, y2=−4.
Plug the given values into the formula for slope: m= (-4)-(5)/ (8)-(2) = -9/6 = -3/2
the slope of the line is m = -3/2
If you are looking to get it into standard form, you distribute the 5 to get 5a+10b
Its 0.14285714 thats the answer
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.