SOLUTION: 21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. a.Do these quantities (number of trucks needed and payload of 1 truck) vary directly or inversely?

Question 1132176: 21 trucks, each with a 2.5-ton payload, are needed to unload a freight train.
a.Do these quantities (number of trucks needed and payload of 1 truck) vary directly or inversely?
b.Find the constant of variation.
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
21 trucks, each with a 2.5-ton payload, are needed to unload a freight train.
a.Do these quantities (number of trucks needed and payload of 1 truck) vary directly or inversely?
b.Find the constant of variation.
================
There's no equation, nothing to vary.
No equation ---> no constant.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Which quantities? One of them is not given. Yes there is variation but for direct or inverse, the description given is incomplete.
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