Answer:
2 hours
Step-by-step explanation:
Given the following :
Darryl :
Speed = 25mph
Jacob:
Traveled in opposite direction
Speed = 35mph
After Darryl had traveled for 4 hours, Distance between them was 170 miles
Distance traveled by Darryl :
Speed * time = (25 * 4) = 100 miles
Total distance = distance traveled by Darryl + distance traveled by Jacob
170 miles = 100 miles + distance traveled by jacob
Distance traveled by Jacob = 170 - 100
Distance traveled by Jacob = 70 miles
Time = distance / speed
Time traveled by Jacob = 70 miles / 35mph
Time traveled by Jacob = 2 hours
Kristen completed 42 km. We will imagine that she ran all 6 hours. => 9 * 6 =54 km which is more than she actually completed. So we will find a 9 Multiple less than 42 km and that will be 36 km. (9 * 4 = 36 km completed by running) and the rest until 42 were completed by walking (3 * 2 = 6; 6 + 36 =42).
B. (0,s/q) ........................................................
Answer:
![\displaystyle{f(x+1)=|x-6|-4}](https://tex.z-dn.net/?f=%5Cdisplaystyle%7Bf%28x%2B1%29%3D%7Cx-6%7C-4%7D)
Step-by-step explanation:
To evaluate
, substitute
to
so we should have:
![\displaystyle{f(x+1) = |x+1-7|-4}](https://tex.z-dn.net/?f=%5Cdisplaystyle%7Bf%28x%2B1%29%20%3D%20%7Cx%2B1-7%7C-4%7D)
Evaluate the expression and finally, we have:
![\displaystyle{f(x+1)=|x-6|-4}](https://tex.z-dn.net/?f=%5Cdisplaystyle%7Bf%28x%2B1%29%3D%7Cx-6%7C-4%7D)
Learn More
brainly.com/question/27923727 - How to find inverse and value of function