6(4.5y – 12) = 9 can someone help me anwser this please
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Answer:
no solutions exist
Step-by-step explanation:
You can rewrite the denominator as:
-2(2x-6) so the equation becomes:
from which you can see that not only should x ≠ 3, but for all values of x≠3 the equation is false.
So Matt is canoeing on a Lake.
It took him 2 hours to get to the lake 4 kilometers away.
On the way back it takes him 90 minutes.
Now, lets say that he is canoeing at 'u' miles per hour and lets assume that the speed of the wind is 'v' miles per hour.
While he sails in opposite to the wind net speed is given by .
Using the relation between distance, time, and speed we get:
kilometers per hour so we get,
..............(equation 1)
Now when he sails along the wind, the net speed is given by
Now, again use the same relation as stated above we get:
(here we have converted 90 minutes into hours
)
..............(equation 2)
Solving equation 1 and 2 we get:
, putting the value of 'u' in equation 1 we get
.
So the speed at which Matt is canoeing is 'u' that is 2.3 kilometers per hour and the wind is flowing at 0.3 kilometers per hour.
So Matt can canoe at 2.3 kilometers per hour without wind. And wind is slowing him down by 0.3 kilometer per hour.