Web1 Answer. If 72 − 3 x − 4 y ≤ 0, then the product is ≤ 0, which clearly can't be the maximum. Hint: Multiply by 12. Apply AM-GM to 3 x, 4 y, ( 72 − 3 x − 4 y) (which are all positive) … WebSimultaneous equations can be used to solve a wide range of problems in finance, science, engineering, and other fields. They are often used to find the values of variables that make multiple equations or expressions true at the same time.
Systems of equations with elimination (article) Khan Academy
Web1 Answer. If 72 − 3 x − 4 y ≤ 0, then the product is ≤ 0, which clearly can't be the maximum. Hint: Multiply by 12. Apply AM-GM to 3 x, 4 y, ( 72 − 3 x − 4 y) (which are all positive) Hint: Write it as a quadratic in one variable. If x is fixed, then let 72 − 3 x = L, and we want to maximize y ( L − 4 y) = − 4 y 2 + y L. WebCalculate it! Examples: 1+2 , 1/3+1/4 , 2^3 * 2^2 (x+1) (x+2) (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2 (x+6) (Solve Example) … then rrrove twue rrove
Math Word Problem: The sum of 2 numbers is 17 and …
WebWhatever values of y you put into this, positive or negative, it's gonna come out positive because that's how the absolute value function ... 3x-4y=8 Geometric figure: Straight Line Slope = 1.500/2.000 = 0.750 x-intercept = 8/3 = 2.66667 y-intercept = 8/-4 = 2/-1 = -2.00000 Rearrange: Rearrange the equation by subtracting ... Web12. 1. If y varies directly as x, and y=28 when x=7. find y when x=15 13. if varies directly as x and y=28 When x=7 find tha value of y when x=9 14. Solve the following:1. If y varies … WebYour equation is ∣y∣ = 0.2x. Whatever values of y you put into this, positive or negative, it's gonna come out positive because that's how the absolute value function ... 3x−4y = 8 … thenrror