So as we all know, subjects or elements can be connected to each other for good use. Today, we are going to talk about how math and science connect. Simply, we're going to talk about how they help each other or what they have in common.

First of all, science uses math to help their ideas. They use it to measure how much they need, or how much is needed for the experiment to work. For example, in BrainPop, Tim and Moby were measuring about how much water is needed for a plant. They tested the plant by giving them a variety amount of water. As the weeks passed, they determined how much the plant needed water, and then, you could convert how much water is needed.

In conclusion, science and math connect because math can be used for science because math helps measure how much of the material they use or need for an experiment. 

So, all of us should know what negative numbers are. However, if you don't know what they are, negative numbers are the opposite of positive numbers. They also come from the other side of zero, and they go down lower and lower. By that, I meant that as the number gets bigger, the quality or value gets lower. -1 would be the greatest amount, and -100 would be the smallest amount. 

How would we use negatives in real life? Well, for zooming in and out with a camera or a microscope could help. Also, I heard that it helps the spacing with typography. It could basically help measure the distance of something, or some sort like that. However, it doesn't help ALL distances. Negative numbers could mostly help with math or measuring. For measuring, I would usually think of using negative numbers for the weather or something. For an example, imagine a scientist measuring the ocean. "It is about -45 degrees," he would say. Negatives can help with the temperature, besides math. You would be surprised at how many math related things are being use

So on last weeks blog, we talked about turning fractions into decimals. Well this week, we are going to turn decimals into fractions, in two ways actually. 

So first of all, one way which I prefer is making the place values the bottom number, and the number of the place value the top number. For example, let's use 0.34. The top number is going to be 34, because it's the number of the place value. The place value will be 100, because the place values on the decimal side is the opposite of the left side of the decimal. 3 is in the tens place, and 4 is in the hundreds place, which makes the fraction 34/100. Now you just simplify the fraction and there you have it. A decimal that is turned into a fraction.

Another way of turning a decimal into a fraction is just move the decimal over the two values to the right, and then just put the number over 100. For example, let's use 0.34 again. Move the decimal to spaces to the right, which is 34. Now put it over 100, since it's in the hundredths place value, which would be 34/100. Then you just simplify the fraction and that would be your answer. I would choose this method because it is an easier and quick

So today's blog topic is a really easy topic today. We're going to explain on how to turn fractions into decimals. Turning fractions into decimals isn't really that hard. You just need to divide the top number with the denominator. 

Here's an example: let's turn 5/9 into a decimal. So all we have to do is divide 5 by 9. 9 can't go into 5 at all, except 0, so 0 is going to be the answer. Then, you have to add a decimal and a 0 at the end, because you need a decimal after all. Now, pretend that the decimal isn't there anymore, and that the number 5 turns into a 50. 9 can go into 50 five times, since 5x9=45. So subtract 50-45, which equals 5. So your answer should be 0.5. That is how you convert a fraction into a decimal.

Which would be better to use in planning purchases of a restaurant? Ratio or Percentage? Truthfully, my answer would be percentage. I think it works best because percentages help you figure it out in your head. For example, I have $30.00 and I go to a small restaurant. I order a dish that costs about 20% of the $30.00 I have. What would the answer be? Well to me, I would multiply $30.00 • 20%. Don't forget to turn 20% into a decimal. Then you just multiply, and your answer should be 6.0000, which means that the entree costs 6 dollars.

Even though I picked percents, this does not mean that ratios are worth less. Ratios and percentages are quite similar to another, but they also have their own differences. They are different forms of fractions, but they also have their own steps to follow. Of course, everyone has their o

So today's blog is simply showing you how to solve 2x-7=15. Now this question isn't that hard, because it is very basic and hopefully you will follow along perfectly. 

Now the first step is to add. How do we add this since there aren't any places to add? Simple. Just add 7 to 15 and 7 itself. So basically, it is 7+7 and 15+7. Now, you do not add 7+7 because if you look at the problem, the original 7 is subtracted, which means that the original 7 is actually a negative 7 (-7). So if you add -7+7, it just equals 
zero, so cross it out. Now you just need to add 15+7, which is 32. Your problem should now look like this: 2x=32. All you have to do now is just divide 32 by 2, which is pretty easy. 32 divided by 2 is 16, which is now your answer.

These multi-step equations are really easy, and they are not that hard to do. You just have to watch out for the operations. The key step is to just remember what is the opposite of the operation, and if you follow that it won't be hard.