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| Question 522202:   Hello, am trying to solve this problem and and no clue where to start. I actually can't even find and example in my test book so I really am at a loss. The question is I = prt: I=21 P=210 and R=0.05 find the value of the variable not given.
 I know the answer is 2 because I got it wrong on my exam I am just needing to know how to get that answer.
 Answer by umnikmo(75)
      (Show Source): 
You can put this solution on YOUR website! here's what you do: given: I=PRT, P=210, R=0.05.
 we need to find the value of the variable which is not given - T
 from equation I=PRT, we find T
 T=I/(PR)
 substituting numbers into the equation, we get:
 T=21/(210*0.05) = 2
 gl, Mo
 
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