SOLUTION: If 2x=7 and 3y=2,then wht is the value of 9xy? a)16 b)28 c)40 d)48

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Question 459201: If 2x=7 and 3y=2,then wht is the value of 9xy?
a)16 b)28 c)40 d)48
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Multiply the two equations to get

(2x)(3y) = 7*2

6xy = 14

Multiply both sides by 3/2

9xy = 21

Not one of the answer choices...