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alexira [117]
3 years ago
7

5x-3x+7=3x-1

%7B3%7D%7B4%7D%20r%20%2B%201%20-%203" id="TexFormula1" title="4r + \frac{2}{4} r + 14 = 5r - \frac{3}{4} r + 1 - 3" alt="4r + \frac{2}{4} r + 14 = 5r - \frac{3}{4} r + 1 - 3" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
nirvana33 [79]3 years ago
5 0

1). 5x-3x+7 = 3x-1

2x + 7 = 3x - 1

3x-2x=7+1

x=8

2)

4r +  \frac{2}{4} r + 14 = 5r -  \frac{3}{4} r + 1 - 3\\ \\5r-4r-\frac{3}{4} r -  \frac{2}{4} r = 14-1+3\\ \\r-\frac{5}{4}r =16\\ \\\frac{4}{4}r-\frac{5}{4}r =16\\ \\-\frac{1}{4}r=16\\ \\ r=-64

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Answer:

Option  A.  24x + 120 > 500  is the inequality that best models this situation.

Step-by-step explanation:

The Number of bottles of spring  water in the stock = 120

Each case of the spring water bottles contains 24 bottles

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So there are already 120 bottles in stock .

The store will order

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