Answer:
-45/7
Step-by-step explanation:
1. make -7 into fraction form. -7/1
2. find a common denominator. there isn't one, so just use 7. multiply -7/1 x 7/7.
3. you should get -49/7. add 4/7 to it and you get -45/7
The difference between a line and a line segment is that a line goes on forever whereas a line segment is just a section of a line with 2 end points.
We already know the number of refrigerators, which is 5. The amount of the total appliances would be found if you added the given 17 and 5. Add them and you get 22
Your ratio should be 5 : 22
In this system of equations, x and y have an infinite number of solutions.
We can see this when we try to solve, either by elimination or by substitution.
For substitution, we can take the equation -x + 2y = -18 and rearrange to get x = 2y + 18.
Then we can substitute this into the first equation:
2(2y + 18) - 4y = 36
4y + 36 - 4y = 36
36 = 36
which gives us no solutions.
For elimination, we can multiple the second equation by -2 so that the y coefficient is also -4:
-2(-x + 2y) = -2(-18)
2x - 4y = 36
which just gives us the first equation.
Therefore, we can deduce that any solution that would work for one equation will work for the other equation, so there are an infinite number of solutions.
I hope this helps! Let me know if you have any questions :)
