Calculating the Total with Percent and Part using a Double Number Line

The video tutorial teaches how to calculate the total number of cars in a parking lot when given the percentage of blue cars and the number of blue cars. It explains the concept of percents as ratios and introduces various methods to solve ratio problems, focusing on using double number lines. The tutorial also addresses common misconceptions about ratios and demonstrates a step-by-step solution to the problem, highlighting both addition and multiplication methods.

What mistake do people commonly make when working with ratios?

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Explain how you can find the total number of cars if you know the part and the percent.

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