In the calm waters of an inlet, manon's boat moves with a velocity (speed and direction) vector \vec{b_1} = (3,4) b 1 ? ? =(3,4). once it enters the main river channel, however, manon observes that it is now moving with a velocity vector \vec{b_2} = (1,1) b 2 ? ? =(1,1).

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step-by-step explanation:

the answer is ! ?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.