Sometimes
Never
Answer:
Option A. always
Step-by-step explanation:
If we have two lines having same slopes or parallel to each other then points lying on each line will be different.
In other words parallel lines never intersect each other so they have no point of intersection or common points.
That's why system of parallel lines have no solutions.
Therefore option A. always is the correct option.
Answer:
diagram?
Step-by-step explanation:
Absolute value which means even negative integers are considered as positive
Answer:
21 birds.
Step-by-step explanation:
Let B represent the number of birds and C represent the number of cats.
We have been given that an animal shelter spends $1.50 per day to care for each bird, so the amount spent on B birds will be 1.50B.
The animal shelter spends $8.50 per day to care for each cat, so the amount spent on C cats will be 8.50C.
Alexander noticed that the shelter spent $108.00 caring for birds and cats on Tuesday. We can represent this information in an equation as:
Alexander found a record showing that there were a total of 30 birds and cats on Tuesday. We can represent this information in an equation as:
We will use substitution method to solve system of linear equations.
From equation (2) we will get,
Substituting this value in equation (1) we will get,
Let us subtract 255 from both sides of our equation.
Let us divide both sides of our equation by -7.
Therefore, there were 21 birds at the shelter on Tuesday.