Step-by-step explanation:
y varies directly as x. y = 10 and x = 5. Find y if x = 15.
SOLUTION:
EQUATION: y = kx
10 = k(5)
10 / 5 = k 5 / 5
2 = k
y = (2)(15)
y = 30
ANSWER ==> y = 30
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Answers & Comments
Step-by-step explanation:
y varies directly as x. y = 10 and x = 5. Find y if x = 15.
SOLUTION:
EQUATION: y = kx
10 = k(5)
10 / 5 = k 5 / 5
2 = k
y = (2)(15)
y = 30
ANSWER ==> y = 30