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lidiya [134]
3 years ago
10

2.0 hours and travels 5.0 km what's the average of speed?

Mathematics
1 answer:
disa [49]3 years ago
7 0
Average speed = 5/2 = 2.5 km/h
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Determine the expression you can substitute for y in to solve the system below.
FromTheMoon [43]

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Step-by-step explanation:

given are the two following linear equations:

                       f(x)  =  y  = 1 +  .5x

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           If y = 0, then  f(x)  =  0  = 1  +  .5x

                                               -.5x  =  1

                                                    x  =  -2

           The resulting data points are  (0,1)  and  (-2,0)

Graph the second  equation by finding two data points.  By setting first x and then y equal to zero it is possible to find the y intercept on the vertical axis and the x intercept on the horizontal axis.

           If x = 0, then  f(0)  =  11  - 2(0)  =  11

           If y = 0, then  f(x)  =  0  = 11  -  2x

                                               2x  =  11

                                                    x  =  5.5

           The resulting data points are  (0,11)  and  (5.5,0)

At the point of intersection of the two equations x and y have the same values.  From the graph these values can be read as x = 4 and y = 3.

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