SOLUTION: I really need help. I have only 1 question. here is is the info. You are driving from Grand Rapids, to Detroit, MI. You leave Grand Rapid at 4:00pm. At 5:10pm you pass throu

Question 420788: I really need help. I have only 1 question. here is is the info.
You are driving from Grand Rapids, to Detroit, MI. You leave Grand Rapid at 4:00pm. At 5:10pm you pass through Lansing, MI a distance of 65miles.
I have to write a linear equation that gives the distance in miles, d, in terms of time, t. Let t represents the number of the minutes since 4:00pm. Then, what time will you arrive in Detroit if it is 150 miles from Grand Rapidsm MI.
Okay, I think: d = 65 miles, and t = 70 minutes.
65 divided by 70 = 0.928 miles per minute.
0.928 x 150 minutes = 2.33 hours (arrival time would be at 6 hours and 33 minutes.
Thank you for any help that you can give me.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You are driving from Grand Rapids, to Detroit, MI.
You leave Grand Rapid at 4:00pm. At 5:10pm you pass through Lansing, MI a distance of 65miles.
---
d = rt
---
t = 70 min = 7/6 hr
d = 65
Rate = 65/(70) miles/min
---
distance = 0.928571t

I have to write a linear equation that gives the distance in miles, d, in terms of time, t.
------
Let t represents the number of the minutes since 4:00pm. Then, what time will you arrive in Detroit if it is 150 miles from Grand Rapidsm MI.
---
150 = 0.028571t
t = 161.54 minutes = (161.54) = (120 + 41.54)min = 2 hr 41.54 min
---
time of arrival at Grand Rapids = 6:54 PM
===============================
Cheers,
Stan H.
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