Answer:
The speed of the boat is 20 km/hr
Step-by-step explanation:
Let s be the speed of boat in still water
Let d be the distance
Upstream speed = s-4
Jane took 30 min to drive her boat upstream to water-ski at her favorite spot.
So, Distance traveled in upstream =
Downstream speed = s+4
So, Distance traveled in downstream = 
So, 
30s-120=20s+80
10s=200
s=20
Hence The speed of the boat is 20 km/hr
Answer:
25
Step-by-step explanation:
as you can see test a is further away from the ruler you have to put it at 0 so that you can get your answer I am not sure if it's correct or not
14 - (11 + 5) * 3 + 2
Solve inside the parentheses first (11 + 5).
14 - (16) * 3 + 2
Solve multiplication next (16 * 3).
14 - 48 + 2
Solve from left to right.
-34 + 2 = -32
Your answer is -32.
Answer:
x=4
Step-by-step explanation:
16-4=12
3x=12
3*4=12
