Find two numbers whose difference is 15 and whose product is 1584

X - y = 15
Xy= 1584
We’ll use substitution to solve. Let’s manipulate the first equation.
X = y + 15
Now we can plug in y + 15 for x in the second
Y(Y + 15) = 1584
Y^2 + 15Y = 1584
You can now solve this like any quadratic. I’ll complete the square.
(Y + 7.5)^2 = 1640.25
Y + 7.5 = 40.5
Y = 33
X - 33 = 15
X = 48

one fourth

Fourth is a word that used to describe a number value of 1/4. To answer this question, you need to change the number you got (3/12) into x/4 form. To convert 12 into 4, then you need to divide the numerator and denominator with 3. The equation would be (3/3)/(12/3)= 1/4. 

To determine how much fourth the number has, you need to divide the result with 1/4. The calculation would be: (1/4)/ (1/4)= one fourth

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