Solve first to find y and -9+9 =0
-9x+4y=-17
9x-6y=3
2y= -14
Y= -14/2
Y=-7
Substitute your y answer into first equation solve to find x .
-9x+4(-7)= -17
-9x-28= -17
-9x= -17+28
-9x= 11
X= 11/-9
X= -1.2222 or -1 and 2/9
So answer is (-1.2222, -7)
Answer:
Step-by-step explanation:
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Answer:
The distance between harbor & the island D = 72.12 km
Step-by-step explanation:
Let the total distance between harbor & island = D
Motor boat going to the island at speed
= 13 knots = 24 
Return speed of the motorboat
= 10 knots = 18.52 
The total time taken for both journey = 6.9 hours


D ( 0.0956 ) = 6.9
⇒ D = 72.12 km
This is the distance between harbor & the island.
Answer:
The answer is A.
Step-by-step explanation: