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19 November, 02:20

A company produces metal slabs for industrial use. The slabs come in three thicknesses: 5in, 10in., 15 in. 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 weight not proportional to the thickness?

A.) Metal 1

B.) Metal 3

C.) Metal 4

D.) Metal 2

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Answers (1)
  1. 19 November, 03:54
    0
    5, 10,15

    divide each by 5

    1,2, 3

    so the ratios should be 1,2,3

    Metal 1 : divide by 150

    1,2,4

    Metal 2 divide by 130

    1,2,3

    Metal 3 divide by 310

    1,2,3

    Metal 4 divide by 140

    1,2,3

    Metal 1 is not proportional

    Choice A
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