Im going to go on and say that it is 90
Answer:
Step-by-step explanation:
Let the speed of current be x
<u>Speed of the boat in same direction as current is</u>
<u>Speed against the current is</u>
<u>Based on the given we get the equation for time</u>
<u>Solving for x</u>
- 6(10 - x) = 4(10 + x)
- 60 - 6x = 40 + 4x
- 6x + 4x = 60 - 40
- 10x = 20
- x = 2
The answer is 2 mph
The two that use scientific notion incorrectly are...
G: two places before the decimal when there should only be one.
H: there is no decimal.
I think the correct answer is B
Answer:
k = 81
Step-by-step explanation:
y = k / x²
Plug in values.
9 = k / (-3)²
9 = k / 9
Solve for k by multiplying both sides by 9.
k = 81