In order to answer, I would first need to know Jana's speed, not that she biked at a constant rate.
Step-by-step explanation:
Distance = rate × time
If B is the rate of the boat, and C is the rate of the current, then we can write two equations:
18 = (B + C) × 3
18 = (B − C) × 9
Simplifying the equations:
6 = B + C
2 = B − C
Add the equations together to eliminate C:
8 = 2B
B = 4
Plug into either equation to find C:
C = 2
The boat's rate is 4 mph, and the current's rate is 2 mph.
Answer:
1 Pm
Step-by-step explanation:
Answer:
416m
Step-by-step explanation:
Volume is found by Length x Width x Height
10.4 x 5 x 8
416
Answer:
2x(5+13)
Step-by-step explanation:
add then multiply by 2
