A tank contains 100\text{L} of water. A solution with a salt concentration of 0.2\text{kg/L} is added at a rate of 7\text{L/min}. The solution is kept thoroughly mixed and is drained from the tank at a rate of 5\text{L/min}. Answer the following questions. 1. If y(t) is the amount of salt (in kilograms) after t minutes, what is the differential equation for which y is satisfied?

i think 5 miles per hour

step-by-step explanation:

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540