Confused About a Math Problem? Check Here!

[alexandravo]

Hi I'm a little bit confused about this question, I don't know if my answer is correct?
The equation of my line is:
Newbirds= -0.304 X % of birds returning +31.93

The question asks: Use the model to predict the new adult number if 60% of adults from the previous year return:
I subbed the value of 6 into the equation? how do I input 60%??
My answer was -0.304 x 6 +31.93= 30.106 new birds.

Am I correct or not?

 

[jvicens]

Hello,

Thank you for your question. It seems like you are on the right track with your answer, but there is one small mistake. Instead of substituting 6 into the equation for the % of birds returning, you should substitute 60% as a decimal, which is 0.60. So your equation should be:

Newbirds = -0.304 x 0.60 + 31.93 = 30.106 new birds

Your answer is correct, but the value you substituted for % of birds returning is incorrect. I hope this helps clear up any confusion. Keep up the good work!