3. The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since the walk begins. Select all true statements about the input variable of this function. A. Distance is the input. B. Time of day is the input. C. Time since the person starts walking is the input. D. 1 represents the input. E. d represents the input. F. The input is not measured in any particular unit. G. The input is measured in hours. H. For each input, there are sometimes two outputs.

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step-by-step explanation:

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