A company produces metal slabs for industrial use. The slabs come in 3 thicknesses: 5in, 10in, and 15in. The weights of each thickness for each metal are given below.

Metal 1: 150lbs, 300lbs, 600lbs

Metal 2: 130lbs, 260lbs, 390lbs

Metal 3: 310lbs, 620lbs, 930lbs

Metal 4: 140lbs, 280lbs, 420lbs

For which of the metals is weight NOT proportional to thickness?

A company produces metal slabs for industrial use. The slabs come in 3 thicknesses: 5in, 10in, and 15in. The weights of each thickness for each metal are given below.

Metal 1: 150lbs, 300lbs, 600lbs

Metal 2: 130lbs, 260lbs, 390lbs

Metal 3: 310lbs, 620lbs, 930lbs

Metal 4: 140lbs, 280lbs, 420lbs

For which of the metals is weight NOT proportional to thickness?

Metal 1

Metal 4

Metal 2

Metal 3

1 answer

Metal 3. The weights for Metal 3 do not increase proportionally with the thickness of the slabs.