Find determinant for a matrix with x on the diagonal and -1 at the end of row 1 and -1 at first of the last row other elemnts are zero x can also be zero

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

the diver is 33 feet below the surface.

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hope this

not me

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i wish i did i would like to get a desert ghost ball python