Question 307309: My algebra techer gave me a review for the final exam and i totally forgot how to do systems!! Here's the problem:
Today Scott sold twice as many shares of stocks at his brokerage firm as he sold last Friday. In the two days, he sold a total of 144 shares of stocks. Write a system of equations that will determine f, the number of stocks sold last Friday, and t, the number of stocks sold today.
Can you please show me all the steps for how to get the answers? Thank you so much!
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! :Today Scott sold twice as many shares of stocks at his brokerage firm as he sold last Friday.
In the two days, he sold a total of 144 shares of stocks.
Write a system of equations that will determine f, the number of stocks sold
last Friday, and t, the number of stocks sold today.
:
Write an equation for each statement:
:
"Today Scott sold twice as many shares of stocks at his brokerage firm as he sold last Friday."
t = 2f
:
In the two days, he sold a total of 144 shares of stocks.
f + t = 144
:
Replace t with 2f in the above equation
f + 2f = 144
3f = 144/3
f = 48 on Friday
:
You can find t, I'm sure
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