A ship leaves its home port and sails on a bearing of S 61° 50' E. Another ship leaves the same port at the same time and sails on a bearing of N 28° 10' E. If the first ship sails at 24 mph and
the second ship sails at 28 mph, find the distance between the two ships after 4 hours.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

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step-by-step explanation: