You have to use the distributive property for the numerator on both equations.
Answer: The function that models the distance they drive is
f(x) = 50x + 20 where x is the time in hours
reasonable domain: 0 ≤ x ≤ 3
Step-by-step explanation:
examples:
95 = 50(1.5) + 20 After driving another hour and a half, they will have driven a total of 95 miles.
120 = 50(2) + 20 This means that after 2 more hours they will reach their destination.
There is a little ambiguity in the question. The function could be written as if they are starting out. f(x) = 50t
20 = 50(.4) At 50 mph it took .4 hours to go 20 miles.
120 = 5(2.4) The whole trip took 2.4 hours.
It helps to draw a picture.
Answer:
2.675 or 107/40
Step-by-step explanation:
- 3/4 x (2 2/5 - 5/6)
- 3/4×107/30
- 107/40
4/5 1/2 0.2 0.5 and apparently theres a character limit
