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08-12-2020
Mathematics

contestada

suppose y varies directy as x if x = 15 when y = 12 find x when y = 21

Respuesta :

ilmaimsirovicea ilmaimsirovicea

08-12-2020

Answer:

26.25

Step-by-step explanation:

y=12

x=15

y=kx 12=k×15 k=12/15=4/5=0.8

21=0.8×x

21/0.8=26.25

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