SOLUTION: louis is 4 times as old as her son dan. the sum of their ages is 40. how long is dan? thank you for help.

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Question 915648: louis is 4 times as old as her son dan. the sum of their ages is 40. how long is dan?
thank you for help.
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
L = age of Louis
D = age of Dan

Both are current ages

"louis is 4 times as old as her son dan" so

"the sum of their ages is 40" which means

Plug in to get...

I'll let you finish up. The goal is to find the value of D. Then use this to find the value of L.

Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim