Applying rational equations 2 | Polynomial and rational functions | Algebra II | Khan Academy

Applying Rational Equations 2

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[khanacademy]

@HiO303 No. You couldn't solve it without flipping the numbers. If you keep things in terms of Hours/deck and take the sum, you are expressing how much total time it would take them to each paint a separate deck. In order to combine their rates, you need to express it as a rate (or decks/hour). I know it can be confusing.

[Chiara-eehz]

I'm confused. Do we multiply both sides by 8A or divide them by 8A?

[calebbrandt]

cant believe schools/Teachers recommend Khan Academy. the speaker talks assuming the audience knows alot of intermediate steps. i like how organic chemistry and other you tubers speak as if someone was learning for the first time. Disclaimer, don't feel bad that you dont understand Khan academy, hes teaching is for people that need a refresher, not for first time learners. inbox me if you would like to be redirected to awesome you tubers like Tyler Dewit, Melissa, organic chem etc for bi, chem, math and more! sorry Khan, your help is wonderful, just not relate able to much people browsing the internet for help.

[saw]

You made absolutely 0 sense as to why those items are in the position they are in. You both said A/x = x/a and mathematically that is impossible. Even on your own website everyone is thoroughly confused.