Solve the given problems by determinants, set up appropriate systems of equations. All numbers are accurate to at least two significant digits.

An alloy used in electrical transformers contains nickel (Ni), iron (Fe), and molybdenum (Mo). The percent of Ni is 1% less than five times the percent of Fe. The percent of Fe is 1% more than three times the percent of Mo. Find the percent of each in the alloy.