Answer:
A
Step-by-step explanation:
3 times -2 is -6
-6 times 2 is -12
-12- (-2) is 10
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:
Hola, no entiendo el inglés, ¿está ahí? Podría ser en español.
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
-4+6=
6-4=
2
Equation: 24•x=72 represents this :)