Using the formula P = 2(a + b), find a when P = 15 and b = 5.

Question

anonymous · Answer

Help, I will best answer, this is the hardest question to me..

vocaloid · Answer

substitute 15 for P and 5 for b

15 = 2(a+5)
divide both sides by 2 and subtract 5 to isolate a

anonymous · Answer

so, it would be 2.5?

vocaloid · Answer

yup, excellent work!

anonymous · Answer

Thank you!.. I am excellent when it comes to solving the problem, but when it comes to figuring out how to make the problem is what gets me.

texaschic101 · Answer

I think setting up the problem is the hardest part

anonymous · Answer

Yeah.

anonymous · Answer

I have 2 word problems for my home work left nad seting up the probelm is hard. It gets me all confused

texaschic101 · Answer

word problems are not as difficult as they seem...you basically have to write it out like you read it....using " math " language

anonymous · Answer

Okay, I appreciate all the work you all are doing to help me and the others. I'm glad this site was created, it's amazing, how people can work together and help each other out.
Have a blessed day! :)

texaschic101 · Answer

it is a very good site for ppl that need help