Suppose y is directly proportional to x, and y = 21 when x = 3. Find x when y = 42.
need po solution, wag pong mag answer ng nonsense
need po solution, wag pong mag answer ng nonsense
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Answer:
x = 6
Step-by-step explanation:
y is directly proportional to x
y = kx where k is the constant
if y = 21 and x = 3
y = kx
21 = k ( 3 )
k = 21 / 3
k = 7
if y = 42, what is x?
y = kx
42 = ( 7 ) x
x = 42 / 7
x = 6