Algera Math question #2

Algebra
Tutor: None Selected Time limit: 1 Day

Suppose y varies directly with x. Write a direct variation to the model situation if x=20 when y=40

Feb 2nd, 2015

y=kx 

plug in y = 40 and x =20

40 = k*20

k =2

therefore, 

y= kx

please best me. 


Feb 2nd, 2015

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