help150 help150

02-11-2015
Mathematics

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suppose p varies directly with d and p= 3 when d= 5. What is the value of d when p= 12

Respuesta :

02-11-2015

d must equal 20
when p=3, d= 5 and then p=12 which is an increase of 4 times therefore
when p=12, d= 5x4=20

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