Question: Solve the systems of equations .It is necessary to set up the appropriate equations. All numbers are accurate to at least three significant digits.
Three oil pumps fill three different tanks. The pumping rates of the pumps (in L/h) r1, r2, and r3 respectively. Because of malfunctions, they do not operate at capacity each time. Their rates can be found by solving the following system of equations:
r1 + r2 + r3 = 14,000
r1 + 2r2 = 13,000
3r1 + 3r2 + 2r3 = 36,000