Solve the following system of equations. You will type your x value in the first part and the y value in the second part of the question. If the answer if no solution then type NS in both parts and if the the answer is infinite solutions then type I in both parts.
x = 0.7(300 - y)
y = 0.8(300 - x)
What is the x value?
just sub one into the other
x = 0.7(300 - y)
x = 0.7(300 - 0.8(300 - x))
x = 0.56x+42
...
once you have x, use either equation to find y.
Solve the following system of equations. You will type your x value in the first part and the y value in the second part of the question. If the answer is no solution then type NS in both parts and if the the answer is infinite solutions then type I in both parts.
5x + 6y = 7
8x + 9y = 10
What is the x value?
To solve the given system of equations:
Step 1: Substitute the value of y from the second equation into the first equation.
x = 0.7(300 - y)
x = 0.7(300 - (0.8(300 - x)))
Step 2: Simplify the equation by distributing and simplifying the expressions.
x = 0.7(300 - 0.8(300 - x))
x = 0.7(300 - 240 + 0.8x)
x = 0.7(60 + 0.8x)
x = 42 + 0.56x
Step 3: Move all the terms with x to one side of the equation and all the constants to the other side.
0.44x = 42
x = 42 / 0.44
Step 4: Calculate the value of x.
x = 95.4545 (rounded to 4 decimal places)
Therefore, the x value is approximately 95.4545.