Answer:
21
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
1st package weighs
pounds;
2nd package weighs
pounds;
3rd package weighs
pounds;
First, add whole numbers:

Now add fractions:

So, the total weight is

- The coordinates of a point satisfies the equation of a line if the point lies on the line
- If a single point satisfies the equations of two lines, the point is on both lines, so the lines will intersect at that point.
- This means that each point where the two lines touch is a solution to the system of equations
- This means that if you substitute the x and y values of the point for x and y in the equations, both equations will be true
<h2>
Explanation:</h2>
You haven't given any option. However, I have tried to complete this question according to what we know about system of linear equations. Suppose you have the following system of two linear equations in two variables:

The fist equation is the blue one and the second equation is the red one. Both have been plotted in the first figure below. As you can see, (-3, -3) is the point of intersection and lies on both lines. So this point is a solution of the system of equation and we can also say that it touches both lines. On the other hand, if you substitute the x and y values of the point for x and y in the equations, both equations will be true, that is:

Also, you can have a system with infinitely many solutions as the following:

Here, every point that is solution of the first equation is solution of the second one. That is because both equations are basically the same. If we divide eq (2) by 2, then we get eq (1).
<h2>Learn more:</h2>
System of linear equations in real life problems: brainly.com/question/10412788
#LearnWithBrainly
Answer:
the answer is -2/7 i hope this helps n srry if it dont help
Step-by-step explanation:
Its is 900 because 120 divided by 8 is 15 and 15 times 60 is 900