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Introduction to rates
Rates, such as kilometers per hour (or sprinkles per jelly donut), help us solve all sorts of important and interesting problems.
Finding a unit rate is a skill often required in real life. How fast is that plane flying? How many lawns can you mow in an afternoon? You see, with our knowledge of ratios and fractions, we can now solve unit rates problems like this.
Let's start by thinking about what percent really means. Once you understand this, other pieces will begin to fall into place.
Practice solving rate problems.
Practice computing and comparing rates.