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If y varies directly as x and y is 18 when x is 5 which expression can be used to find the value of...
5 months ago
Q:
If y varies directly as x and y is 18 when x is 5 which expression can be used to find the value of y when x is 11?
Accepted Solution
A:
y = kx where k is a constant Thats direct variation.
plug in given values:-
18 = k * 5
k = 18/5 = 3.6
so the equation of variation is y = 3.6x
when x = 11, y = 3.6 * 11 = 39.6 Answer