SOLUTION: I have an equation that I am not sure of how to work this problem.My equation is y= 21.0 sqrt7 +18, I thought that it would be y=21.0 + 2.65 +18, y=41.65. My pratice problem tel

Question 358155: I have an equation that I am not sure of how to work this problem.My equation is y= 21.0 sqrt7 +18, I thought that it would be y=21.0 + 2.65 +18, y=41.65. My pratice problem tells me the answer is wrong. I don't know what I am doing wrong, could you please help me? Thank You
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
y= 21.0 sqrt7 +18, I thought that it would be y=21.0 + 2.65 +18, y=41.65.
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You show 21 times sqrt(7), but then you add them ??

y = 21*2.65 + 18
y = 55.56 + 18
y = 73.56

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