A=B
4(A-120) = A+120
Solve for A (THE original AMOUNT) then subtract the 120 ml that was transferred.
pi r^2 h is the lateral surface area....be careful...you are given DIAMETER and should use the RADIUS !
That's cool ! I didn't know about this capability ....
It will go from Quadrant 2 to Quadrant 3 and will be -5, -7
"I don't do math" better learn 'to do' math or " I don't do math" will never get far in this world.
and I won't get much further if I make MISTAKES at math !! Corrected my typo
1st person rate = 1 tank / 120 m
2nd person rate = 1 tank / x m
1 tank / ( 1 tank/120m + 1tank/xm) = 70 m
1 / (1/120 + 1/x) = 70
1 = 70 ( 1/120 + 1/x)
1 - 70/120 = 70/x
x= 168 m
From 11 to 35 is 24 1/3 of this is 8 11 + 8 = 19
from -13 i to - i is 12 i 1/3 of this is 4 i -13 i + 4 i = - 9 i
For squares. see:
https://www.purplemath.com/modules/specfact.htm
For cubes see:
https://www.cliffsnotes.com/study-guides/algebra/algebra-ii/factoring-polynomials/sum-or-difference-of-cubes
L + T = 34
Five years ago they were five years less old L- 5 and T- 5
2 ( L - 5) + 3 (T-5) = 61 Two equations...two unknowns....solve for L and T
.01 p + .05 ( p + 3) = .75 solve for p then n = p+3
15 m/h * 2 hr + x m/h * 1 hr
________________________ = 14 m/hr
2 hr + 1 hr
(15*2 + x ) / 3 = 14
30 + x = 42
x = 12 m/hr