Describe a situation where each of the following quantities might be useful.
Question 1
1.
-20 gallons per hour
Question 2
2.
-10 feet per minute
Question 3
3.
-0.1 kilograms per second
A submarine is only allowed to change its depth by rising toward the surface in 60-meter stages. It starts off at -340 meters.
1
Question 4
4.
At what depth is it after 1 stage?
1
Question 5
5.
At what depth is it after 2 stages?
1
Question 6
6.
1
Some boats were traveling up and down a river. A satellite recorded the movements of several boats.
1
Question 8
8.
A motor boat traveled -3.4 miles per hour for 0.75 hours. How far did it go?
1
Question 9
9.
A tugboat traveled -1.5 miles in 0.3 hours. What was its velocity?
1
Question 10
10.
What do you think that negative distances and velocities could mean in this situation?
Question 11
11.
A cookie recipe uses 3 cups of flour to make 15 cookies. How many cookies can you make with this recipe with 4 cups of flour? (Assume you have enough of the other ingredients.)
Question 12
12.
A teacher uses 36 centimeters of tape to hang up 9 student projects. At that rate, how much tape would the teacher need to hang up 10 student projects?
Evaluate each expression. When the answer is not a whole number, write your answer as a fraction.
1
Question 13
13.
-4\cdot-6
1
Question 14
14.
-24\cdot\frac{-7}{6}
1
Question 15
15.
4\div-6
1
At what depth is it after 4 stages?
Question 7
7.
How many stages will it take to return to the surface?