Omaha, Nebraska, is about 90 miles from Lincoln, Nebraska. Irania Schmidt must go to the law library in Lincoln to get a doc-
ument for the law firm she works for. Find how long it takes her
to drive round-trip if she averages 50 mph.
Start the solution:
1. UNDERSTAND the problem. Reread it as many times
as needed.
2. TRANSLATE into an equation. (Fill in the blanks be-
low.) Here, we simply use the formula d = röt.
distance
rate or
equals
(round-trip)
time
speed
✓ ✓
t
Finish with:
3. SOLVE and 4. INTERPRET

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?