Answer:
The solution is obtained by adding the two equations.
The solution is: (x, y) = (
,
)
Step-by-step explanation:
We are given two equations with two variables. The strategy is to eliminate one variable and solve for both the variables.
The two equations are:


Adding both the equations, we get:



Substituting the value of 'x', we get the value of y.
We substitute in (2). [Can be substituted in any equation].
We get: y = 2x - 1



So, we get the corresponding values of x and y which is the solution of the two equations.
The answer would be 323/<span>1440
</span>
Answer:
y=7
Step-by-step explanation:
x+y=12
x=5
12-5=7
Answer:
1.6 tons
Step-by-step explanation:
First, find the weight in pounds:
80(40)
= 3,200
Convert this to tons by dividing it by 2000, since there are 2000 pounds in a ton:
3200/2000
= 1.6
So, the total weight was 1.6 tons