200/5 = 40 mph 200/4 = 50 mph Let x be the speed in still waters and y the speed of current. x + y = 50 x - y = 40 ADD 2x = 90 x = 45 mph ANSWER is C) 2) C
Answer:
A is neither, B is direct, and C is inverse
Step-by-step explanation
In B, as x increases y also increases, in C as x increases y decreases, and in A it's neither because it's not one line (if you graphed it you would understand what I mean). Though I have no idea what is constant of variations.
Answer:
6
Step-by-step explanation:
1 shook 2,3, and 4's hands
2 shook 3, and 4's hands
3 shook 4's hands
4 already got his hand shaken by everyone
1-2, 1-3, 1-4.
2-3, 2-4
3-4
(Anyone feel free to correct me. I'm not amazing at math just trying to help out.)
Answer:
Yes
Step-by-step explanation:
9.3
+2.5
---------
11.8
9+2=11
.3+.5=.8
11+.8=11.8
