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I need help on 7 grade math homework! dave F is really good at this! plz answer?

Topic: Math homework videos
June 16, 2019 / By Sal
Question: #1 used video games cost \$25 each. write an expression to find out the cost of m video games #2: Sal earned \$740 for n weeks of work. Write an expression for the amount he earned each week please answer!

Best Answers: I need help on 7 grade math homework! dave F is really good at this! plz answer?

Originally Answered: I need help on 7 grade math homework! dave F is really good at this! plz answer?
You can say that "the second power" is written as ^2 or if it's to the forth power ^4, ect. so q^2+2q=2q^2 Plug in both 1 and 2, and see which one is correct. 1^2 +2(1)= 2(1)^2 1+2=4 incorrect. 2^2+2(2)=2(2)^2 4+4=8 correct So it's 2.
Originally Answered: I need help on 7 grade math homework! dave F is really good at this! plz answer?
This is the initial equation : q^2 + 2q = 2q^2 Bring the q^2 to the other side and you get: 2q = 2q^2 -q^2 This simplifies to : 2q = q^2 Divide both sides by q and you get : 2=q Just a little hint when you have a couple of answers, why don't you substitute in what you think q equals and see if it works. Check : sub q=2 into original equation 2^2 + 2x2 = 2x2^2 4+4=2x4 8=8 which means q=2 works

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