Answer:
B- 125
Step-by-step explanation:
c + a = 400
a = 400 - c
5c + 8a = 2825
5c + 8(400 - c) = 2825
5c + 3200 - 8c = 2825
3c = 375
c = 125
This equation can have a number of solutions. Typically when solving a two-variable equation, you are looking for the slope intercept form of the line. In this case that is:
y = 3x - 1
You basically subtract 15 from a number then continue doing it each time
So 152, 137, 122, 107, 92, 77...
Another way to tell is if you minus 137 from 152, its 15
Do that again to the next number which is 137 minus 122 and its 15.
You can do this just to check and make sure you are doing it right
Answer: The pattern is subtracting 15 from each number as you go along the pattern.
3 * 1 * -1 because 3 times one is 3 and that times a negative turns it into a negative. ( positive * negative = negative)
