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Group similar objects?
True. In geometry it is sometimes helpful to group objects and look at similarities between them.
How can you do a simultaneous equation in maths?
Simultaneous Equations are very helpful because it can help u solve problems in real life. There are 2 ways to approach a simultaneous equation, Substitution and elimination method. As a good practice it is always good to practice your substitution method first. I wont go too advance for now but consider this question; Find two numbers whose sum is 21 and difference is 9. This question requires 2 equation to solve; thus it is call simultaneous equation. Solve: Let x be a number, and Let y be another number. x + y = 21 equation 1 x - y = 9 equation 2 Rearrange equation 2 to make equation 3(Equation 3 is just to sub into the other eqs) x = 9 + y equation 3 Sub equation 3 into 1 (9 + y) + y = 21 9 + 2y = 21 2y = 12 y = 6 First solution! Sub y = 6 into equation 2 x - 6 = 9 x = 15 Second Solution! Therefore, the numbers are 15 and 6. In a simultaneous equation (with 2 variable) there will always be 2 answers. Good luck and hope this help.
How can estimating be helpful before finding the actual product?
It is helpful because when you are finished estimating (for example: multpliying, diving, adding or subtracting) it's like checking your work that's why it can be helpful to estimate before finding the actual product.
Why is estimating helpful?
It depends on the person to think if estimation is helpful. If you get a math equation like: 24 + 34 + 12 = ? And the question asked you to estimate than you can do: 20 + 30 +10 = 60 and the you know that your answer is close to 60. Estimation can also be used when you need to guess ~ For example: How many jelly beans are in this group? You can estimate the correct answer without counting them. Let's say there are 80 jelly beans and you guest 75. That is estimating because you would take the time to think and you would OBVIOUSLY not guess 10. Sorry if I wrote too much...
How do you graph 3x-y equals 6?
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