Write a sum of four numbers that equals 0, none of which are opposites.
A submarine is searching for underwater features. It is accompanied by a small aircraft and an underwater robotic vehicle.
At one time the aircraft is 200 m above the surface, the submarine is 55 m below the surface, and the underwater robotic vehicle is 227 m below the surface.
1
Question 13
13.
What is the difference in height between the submarine and the aircraft?
1
Question 14
14.
What is the distance between the underwater robotic vehicle and the submarine?
Solve the cycling problem:
1
Question 15
15.
Clare is cycling at a speed of 12 miles per hour. If she starts at a position chosen as zero, what will her position be after 45 minutes?
1
Question 16
16.
Han is cycling at a speed of -8 miles per hour; if he starts at the same zero point, what will his position be after 45 minutes?
1
Question 17
17.
What will the distance between them be after 45 minutes?