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Given that y is proportional to x what linear equation can you write if y is 16 when x is 20?


A.) y=20x


B.) y=5/4x


C.) y=4/5x


D.) y=0.6x


Show how you solve this please

I GIVE THANKS!!!

Verified Answer :

belcatya

y=16  x=20
 put these values in equation and see rifht or wrong

A) 16 ≠2020 wrong
B) 16 ≠ (5/4)20 - wrong
C) 16=(4/5)20 - right
D) 16≠0.620
Answer: C) y=4/5*x

y : x is the same as y/x
substitute
16/20= y/x
cross multiply

20 y= 16 x
y= 16x/20
reduce the fraction
y= 4/5x

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