Question
Haimi drove a car from West Union, Minnesota, through North Dakota, to Miles City, Montana. The total distance she traveled through each state is shown in the figure.
The distance 
, in miles, Haimi drove as a function of the time 
, in hours, since she started driving is modeled by the equation d = 60t.
According to the model, what distance, in miles, had Haimi driven 3 hours after she started driving?
- 20
- 60
- 120
- 180
The correct answer is: 180
HINT: Substitute the value in the given equation.
Complete step by step Solution
Given that the distance is in miles and time is in hours.
Haimi’s driving is modeled by the equation d = 60t.
Distance traveled by Haimi after driving for t = 3 hours is given by,
d = 60t = 60 × 3 = 180
Therefore d = 180 miles.
Hence option D is the right answer.
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?
, which of the following is equivalent to 
?
