1. The problem gives the inequality $$29 > 2x + 7x + 7$$ and asks to analyze the graph and test some values.
2. First, simplify the inequality:
$$29 > 2x + 7x + 7$$
$$29 > 9x + 7$$
3. Subtract 7 from both sides:
$$29 - 7 > 9x + \cancel{7} - \cancel{7}$$
$$22 > 9x$$
4. Divide both sides by 9:
$$\frac{22}{9} > x$$
This means $$x < \frac{22}{9}$$ approximately $$x < 2.44$$.
5. For the graph of $$x < 2.44$$, the circle at $$x = 2.44$$ is open because $$x$$ cannot equal $$2.44$$.
6. The arrow points to the left because the inequality is $$x < 2.44$$.
7. Check if 8 is a solution:
$$8 < 2.44?$$ No, so false.
8. Check if 11 is a solution:
$$11 < 2.44?$$ No, so false.
9. Check if 13 is a solution:
$$13 < 2.44?$$ No, so false.
10. The user answers were:
- Blank 1: open (correct)
- Blank 2: left (correct)
- Blank 3: true (incorrect, 8 is not a solution)
- Blank 4: false (correct)
- Blank 5: true (incorrect, 13 is not a solution)
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Now for Question 4:
1. Ricky mixes 4 pints white for every 12 pints blue.
2. Total paint is 56 pints.
3. The ratio white:blue is 4:12 which simplifies to 1:3.
4. Let the number of white pints be $$w$$ and blue pints be $$b$$.
5. From ratio: $$w = \frac{1}{3}b$$.
6. Total paint: $$w + b = 56$$.
7. Substitute $$w$$:
$$\frac{1}{3}b + b = 56$$
8. Combine terms:
$$\frac{1}{3}b + \frac{3}{3}b = 56$$
$$\frac{4}{3}b = 56$$
9. Multiply both sides by $$\frac{3}{4}$$:
$$b = 56 \times \frac{3}{4}$$
$$b = 42$$
10. Find $$w$$:
$$w = \frac{1}{3} \times 42 = 14$$
So, Ricky used 42 pints blue and 14 pints white.
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Summary:
- Question 3 answers: Blank 3 and Blank 5 are incorrect.
- Question 4 solution: 42 pints blue, 14 pints white.
Inequality Graph 5690D2
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