Answer:
1. C(9,4) : n=9, s=4
2. C(10,5) : r=5
3. C(5,5) : n=5
4. C(7,7) : n=6
5. C(18,17) : r=3
Step-by-step explanation:
I like the substitution method. Which is when you make one equation equal only x or y and plug it into the other equation)
There is also the graphing method. If you graphed it, it might not be quite as accurate (at least on hand, on computer you would be pretty exact)
Then there is the elimination method. You multiply one of the equations by a coefficient so that you can eliminate x or y from the equation.
Answer:
what the question
?
Step-by-step explanation:
Answer:
300km south
Step-by-step explanation:
Go up once from original position then down four times
Answer:
24x-8y
Step-by-step explanation:
8 times 3x is 24x and 8 times y is 8y
