Answer:
(a) Output = 37
(b) Input = 9
Step-by-step explanation:
Given
Solving (a): Output, when input = 8
This means that, we solve for y when x = 8
So, we have:
Solving (b): Input, when output = 42
This means that, we solve for x when y = 42
So, we have:
Collect like terms
Divide both sides by 5
Answer:
Step-by-step explanation:
Answer:
21 roads
Step-by-step explanation:
If each two cities are connected by a direct road, to find the number of roads we just need to solve a combination of 7 choose 2, that is, we need to find all pairs of two cities among the 7 cities:
Combination of 7 choose 2 = 7! / (5! * 2!) = 7*6/2 = 21
So there is a total of 21 roads on the island.
Answer:
I have zero idea what you mean im sorry this is a bad answer
Step-by-step explanation:
Answer:
x = 51
can't see the problem very well but I'm pretty sure this is the answer.
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
