Answer:
feet : Shark is 72 feet below sea level.
Step-by-step explanation:
Let x represent depth of the shark.
We have been given that the submarine’s depth was twice the depth of the shark. This means that depth of submarine would be
.
We have been given that a submarine was 144 feet below sea level, so submarine's elevation would be
.We can represent this information in an equation as:

To find shark's position, we need to solve for x.


Therefore,
feet represents shark's elevation, which represents that shark is 72 feet below sea level.
Given:
The graph of a line which represents position (m) at time (s).
To find:
The slope of the line.
Solution:
Formula for slope:

From the given graph it is clear that the line passes through two points (0,0) and (1,4).
Using the above formula, we get



Therefore, the slope of the line is 4 m/s.
Sorry but I can’t see the pic,it’s blurry!
Answer:
Ahmed has more toffees
Ben has more chocolates
Step-by-step explanation:
Ahmed:
60% = 3/5
3/5 x 30 = 18
therefore out of 30, 18 are toffees.
30 - 18 = 12
therefore 12 are chocolates
Ben:
3/8 x 40 = 15
therefore out of 40, 15 are toffees
40 - 15 = 25
therefore 25 are chocolates
By the way I am not sure!
Answer:
The answer is -15.75 because 4= -16= -79 you have to turn 16 positive so add 16 to -79 to get -63 then divide by 4 to get the answer -15.75.