Respuesta :
The number of minutes after the start of the race is $140 minutes
First step is to determine the speed based on the information given in the table
Speed=2.5-1.25/20-10
Speed=1.25/10
Speed=0.125 miles per minutes
Second step is to determine the speed based on the information given in the graph
Speed =5.5-4.5/20-10
Speed =1.5/10
Speed =0.1 miles per minutes
Now let determine number of minutes after the start of the race
Let x represent the number of minutes
0.125x= 3.5 + 0.1x
0.025x = 3.5
Divide both side
x= 3.5 / 0.025
x= 140 minutes
Inconclusion The number of minutes after the start of the race is $140 minutes
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