Pretty Please help me undderstand ratios and rates. I have been to a buncha other sites trying to figure them out and I just don't get them. I would really apprieciate it if some one could help. Pretty please with whip cream and cherries on top :)
These sites should help you.
http://www.mathsisfun.com/numbers/ratio.html
http://www.mathsisfun.com/measure/unit-price.html
http://www.khanacademy.org/video/simplifying-rates-and-ratios?playlist=Developmental%20Math
OMG!! THANK YOU SO MUCH!!! They really helped me understand FAST!!! Thanks again :p
You're very welcome. :-)
Of course, I'd be happy to help you understand ratios and rates!
Let's start with ratios. A ratio is a way to compare two quantities or values. It shows how much of one thing there is compared to another. You can think of a ratio as a fraction or a comparison using a colon (:). For example, if you have 4 red marbles and 6 blue marbles, the ratio of red marbles to blue marbles is 4:6 or simplified to 2:3.
To understand ratios, it's important to know that they represent a relationship between two numbers. If you have a bag with 5 apples and 3 oranges, the ratio of apples to oranges is 5:3. Ratios can also be written as fractions, so in this case, we can say that the ratio of apples to oranges is 5/3.
Now, let's move on to rates. A rate is a special kind of ratio that compares quantities with different units of measure. It tells you how one quantity changes compared to another in terms of time. Rates are usually expressed with a unit of measurement, such as miles per hour or dollars per hour.
For example, if you travel a distance of 60 miles in 2 hours, the rate at which you are traveling can be expressed as 60 miles/2 hours, which simplifies to 30 miles per hour. This means you are traveling at a rate of 30 miles for every hour of time.
To calculate a rate, you divide one quantity by another. In the example above, we divided the distance traveled (60 miles) by the time taken (2 hours) to get the rate of 30 miles per hour.
To summarize:
- Ratios compare two quantities and can be written using a colon (:) or as a fraction.
- Rates are a special kind of ratio that compares quantities with different units of measure and are usually expressed as a quantity per unit of time.
I hope this explanation helps you understand ratios and rates better! If you have any further questions, feel free to ask.