Answer:
Boat = 20 mph
Current = 5 mph
Step-by-step explanation:
If b is the speed of the boat, and c is the speed of the current, then:
b + c = 225 / 9 = 25
b − c = 225 / 15 = 15
Solve the system of equations with elimination.
2b = 40
b = 20
Plug back into either equation to find the speed of the current.
c = 5
Answer:
y = 2x² + 16x + 11
Step-by-step explanation:
first foil (x + 4)² to get x² + 8x + 16
distribute 2 to get 2x² + 16x + 32
subtract 21 from 32
Answer:
I cant see the image it doesnt seem to be loading but here is how to do the problem-->.
Add both the x coordinates and divide by 2 (this is the new x coordinate for the midpt)
next:
Add both y coordinates and divide by 2(this is the new y coordinate for the midpt)
Step-by-step explanation:
Answer:
3.81 = 3 81/100
Step-by-step explanation:
This can’t be simplified so it stays as 3 
The right answer is 18.8333333... Or 18 7.5/9
