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The value of y is directly proportional to the value of x.If y=35 when x=140, what is the value of y when x=70
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The value of y is directly proportional to the value of x.If y=35 when x=140, what is the value of y when x=70

User Zenazn
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1 Answer

4 votes
y varies x
Invite the constant
y = kx
Kx/x = y/x
K = y/x
Slot in the values
K = 35/140
= 1/4 or 0.25

What is the value of y when x=70
y=kx
y = 35/140 x 70/1
y = 35/2
y = 17 1/2 or 17.5
User Loreta
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