Answer:
The solution to this system is (4, 1/6).
Step-by-step explanation:
Please separate these two equations for clarity. I like to write them in column format:
2.5y + 3x = 27
5x – 2.5y = 5
---------------------
8x = 32, and x = 4.
Subbing 4 for x in the second equation yields 5(4) - 2.5y = 5.
Then 20 - 2.5y = 5, or 15 = 2.5y. Solving for y, we get y = 1/6.
The solution to this system is thus (4, 1/6).
we know that
the rate of elevation is 2 feet per minute
so
Find out the elevation in 10 minutes
Multiply 2 ft/min by 10 min
2*10=20 ft
therefore
her elevation 10 minutes ago is
0-20=-20 ft ----> is negative because is below sea level
the answer is
-20 ft or 20 ft below the sea level
Answer: 904 inches cubed
Explanation:
Since you know that the radius is 6 inches, then all you have to do is plug it into the formula.
V=(4/3)*(3.14)*(6)^3
=(4/3)*(3.14)*(216)
=904.32
When you round that to the nearest whole number, it becomes 904.
