Solve the problem.
-If the mass of an object is 7.0543 × 10-4 tons and its volume is 1.21 × 103 cubic feet, find the density of this object. (Use the formula and round to the nearest hundredth, if necessary.)

Question

Solve the problem.
-If the mass of an object is 7.0543 × 10-4 tons and its volume is 1.21 × 103 cubic feet, find the density of this object. (Use the formula  and round to the nearest hundredth, if necessary.)

Quizplus · Accepted Answer

Density = mass / volume
Converting mass in tons to pounds: 
7.0543 × 10-4 tons = 140.86 pounds (1 ton = 2000 pounds)
Density = 140.86 pounds / 1.21 × 103 cubic feet = 0.1164 pounds/cubic foot 
Rounding to the nearest hundredth, we get 0.12 pounds/cubic foot, which corresponds to choice C.

Solve the Problem. -If the Mass of an Object Is 7.0543 × 10-4