Answer: x = f/k + 1
Step-by-step explanation:
Answer:
Step-by-step explanation:
4.0 | <u> 4.50 </u> | -0.3(4.0) + 6.71 = <u>5.51</u> | 4.50 - 5.51 = <u>-1.01</u>
5.9 | <u> 5.50 </u> | -0.3(5.9) + 6.71 = <u>4.94</u> | 5.50 - 4.94 = <u>0.56</u>
If you want x, rearrange <span>Z=y+mx as follows: mx = z - y. Then div. all 3 terms by m:
z-y
x = ------- (answer).
m </span>
Distance = 30 mph * time
distance = 4 mph * time
distance = 30 mph * t
distance = 4 mph * (17-t)
Since distance is equal then
30 mph * t = 4 mph * (17-t)
30t = -4t + 68
34t = 68
t = 2 hours
We see the return trip time is (17 -t ) which is 15 hours.
The beginning trip time is 2 hours.
Double Check
Beginning trip = 30 miles * 2 = 60 miles
Return trip = 4 miles * 15 = 60 miles.
