Y=x+4 becomes 3x=x+4 by substitution then you subtract x to get 4 by itself then you will have 2x =4. So your answer is x=2.
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Let the length be l and width be w.
l = w + 4
Area = length x width
396 = (w + 4)w
w² + 4w - 396 = 0
w = 18, w = -22
Negative width not possible so answer discarded.
Width = 18 feet.
Answer:the answer is D. 25:44
Step-by-step explanation: the first step is to do the cumulative total of Andrew's number of coins(100).
Then you do the cumulative total of Staci's coins(176).
After you find the cumulative total of them both, since it is Andrew:Staci, you will ratio Andrew's total to Staci's.
Which is 100:176 .
Then from here you reduce this to the lowest term
