Platforms
When a = 1 and b = 5, what is the value of c?
3/40
What is the value of k?
7
What is the missing value of x? ⇒ 6
12
W varies jointly with x, y, and z. What happens to W when x, y, and z are each doubled?
What is the missing value of z?z =
42
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Joint and Combined Variation
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