Jada and lin are comparing inches and feet. jada says that the constant of proportionality is 12. lin says it is 1/12. do you agree with either of them? explain your reasoning.

answer:

jada and lin are comparing inches and feet.

let i denote inches and f denote feet.

it is given that

  i =k f or f=m i

so, i/f=k or m=f/i

as   we know 1 feet = 12 inches

constant   of proportionality i.e k=1/12

in case 2, constant of proportionality=12/1=12

so, jada must have calculated ratio of feet to inches while lin has calculated the ratio of inches to feet.

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