If y varies directly
as x, and y = 20 when
x = 4. Find y when x = 2.
2 answers:
Answer:
10
Step-by-step explanation:
If you have to divide x by two, and y varies directly toward x, y also has to divide by two. 20/2 is 10.
Answer: 10
Step-by-step explanation:
Given ; y = 20
x = 4
since y varies directly as x,
y = kx
where k is the value of proportionality.
Input the values
20 = k (4)
20 = k4
dividing both sides by 4
20/4 =k
k = 5
To find the value of y when x = 2,
y = kx
y = 5 (2)
y = 10
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