A beaker of mass 1.3 kg containing 2.7 kg of water rests on a scale. A 3.9 kg block of a metallic alloy of density 5300 kg/m3 is suspended from a spring scale and is submerged in the water of density 1000 kg/m3. What does the hanging scale read? The acceleration of gravity is 9.8 m/s^2.