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xy = 100
x + y = 21 ... so y = 21 - x, and x(21 - x) = 100
x2 -21x + 100 = 0
x =(21+- sq rt(212 - 4*1*100) ) / (2*1)
x = (21 +- sq rt(41) )/2
x = (21 + sq rt(41) )/2 or (21 - sq rt(41) )/2
4 and 100
It's unclear whether you want two numbers that add to a sum or multiply to a product. 25 x 4 = 100 25 + 75 = 100
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To find two numbers that multiply to 0.04, we can express 0.04 as a fraction by writing it as 4/100. So, the numbers that multiply to 0.04 are the square root of 4 (which is 2) and the square root of 100 (which is 10), as 2 * 10 = 20. Therefore, the numbers that multiply to 0.04 are 2 and 10.
The three numbers that equal 430 are 100, 200, and 130. This is because 100 + 200 + 130 = 430. These numbers can be added together to reach the total sum of 430.