A experiment calls for 60 gallons of a 60% saline solution. You only have a 70% saline solution and a 40% saline solution. Let x represent the amount of 70% saline solution and y represent the amount of 40% saline solution, what is the equation that describes the total amount of pure saline in the solution? O x(0.7) – y(0.4) = 60(0.6) O x(0.4) + y(0.7) = 60(0.6) O x(0.4) – y(0.7) = 60(0.6) O x(0.4) + y(0.7) = 60(1.1) O x(0.7) + y(0.4) = 60(0.6)

Q: Gal of solution| % to dec.|Gal of alcohol  X             | 30%=0.3| y              |5%= 0.05| 25.…

A:

Q: Find a general solution. y₁ = y₁ + 2y2 + e²t Y2 = -32 +42e-2t NOTE: Write arbitrary constants as c₁,…

A: Linear differential equation  where  are functions of x or constants.Then Integrating factor (I.F.)=…

Q: y=2.2x+12      x= y=2x−6.1     x= y=5(x+5)−1 x=

A: 1. Given y = 2.2x + 12 y= 4x + 12 4x = y - 12 x = (y - 12)/4 Or   x = (y/4) - 3

Q: Give a non-trivial example of an equation that has the solution x=−3/7.

A:

Q: I like to take in account how much I’m going to set aside for savings that month as well as…

A: If a person saves $400 per month and spends $1000 on bills per month then let 'x' be the number of…

Q: equation

A: We have to write the linear equation of the given conditions

Q: = 4y- 9 3x +12y %D The solution is

A:

Q: Solve the equation y" – 8y' + 16y =t-te*.

A: