Solve the system of linear equations. (enter your answers as a comma-separated list. if there is no solution, enter no solution. if the system has an infinite number of solutions, set w = t and solve for x, y, and z in terms of t.)
x + y + z + w = 6
2x + 3y − w = 0
−3x + 4y + z + 2w = 4
x + 2y − z + w = 0
find (x, y, z, w).

4th option is correct xy=-10

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6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation:

the best estimate is 3 because   8 can only go into 24 3 times