I think (7,10)
I hope that I helped ;D
Y + R + V = 42
but 4 YEARS AGO : (R-4) +(V-4) = Y
Replace Y in the 1st equation by: (R-4) +(V-4)
(R-4) +(V-4) + R + V = 42
2R - 2V - 8 = 42; 2R -2V = 50, or R+V=25
IF R+V =25 AND Y + R +V = 42, then Y + 25 = 42 and Y =17
Answer:
77 feet below sea level.
Step-by-step explanation:
Since y is the time the submarine is ascending, we can plug it in for y and find our answer. We can create an equation where D is the depth and y is time ascending: D = -230 + 17y
Substitute 9 for y:
D = -230 + 17(9)
D = -230 + 153
D = -77
The depth of the submarine after 9 minutes will be 77 feet below sea level. Hope this helps, and Brainly will be highly appreciated.
Answer:
Rounded Answer: 0
Not Rounded Answer: -0.00198019802
Step-by-step explanation:
Rounded Answer:
20/101 = 0.19801980198
Round that to 0.2
20/99 = 0.2
0.2-0.2 = 0
Not Rounded Answer:
20/101 = 0.19801980198
20/99 = 0.2
Answer: -0.00198019802
