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Contact [7]
3 years ago
10

Find the value of two numbers if their sum is 23 and their difference is 5

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Let the two numbers be represented by x and y respectively.

Then x + y = 23, and x - y = 5.  

Solve this system of linear equations for x and y.  Start by rearranging them vertically:

x + y = 23

x - y = 5

---------------   Combining the two equations eliminates y:

2x = 28.

Then x = 14.  If x = 14, then 14 + y = 23, and y = 9..

The solution is (14, 9);  that is, x = 14 and y = 9.

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3 years ago
9 to the power 3 + 3 to the power 2 + 6 to the power 3 + 15 power 2 equals to how much
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Hey! So, here's a tip. When writing exponents, an easier way is to write a^b, rather than a to the b power. Besides that, here is your answer!


So-------

9^3=729

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Now that we have that figured out, we can add them together, wish is simple. 729 + 9 + 216 + 225= 1,179.



Therefore, your final answer will be 1,174.




If you have any questions on this, I'm happy to help you. :)




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3 years ago
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