2. Solve: (solution set)
¾ (3x ½ ) 2/3<1/3
9/4x3/82/3<1/3
9/4x3/82/3=1/3
9/4x3/8=1/3+2/3=1
9/4x3/8=1
9/4x=1 3/8
X< 11/18
{xx<11/18}
3. First, classify the graph of the system as consistent or inconsistent and as dependent or independent.
Then match it with a system of equations.
Solutions: Infinitely many
Is the system
consistent or inconsistent?
Are the equations
dependent or independent?
Which system of equations matches the graph?
1.
8x6y=42
8x+6y=42
2.
8x+6y=42
8x6y=42
4. Match each graph with the appropriate inequality
Graph 1 (0,3) (3,0)
Y+x/<3
Graph 2 (0,3)(4,0)
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Graph 3 (3,0)(5,0)
5x3y<15
5. The perimeter of a rectangle is 54m. The length is 9m more than twice the width. Find the dimensions.
2L+2W=54
L=2W+9
2(2W+9)+2W=54
4W+18+2W=54
6W=36
W=6
L=2(6)+9
L=12+9
L=21
2(21)+2(6)=54
42+12=54
6. Miguel’s insurance company will replace his car if repair costs exceed 80% of the car’s value.
The car
recently sustained $9600 worth of damage, but it was not replaced. What was the value of his car?
More than $12,000
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 Spring '10
 Waynn
 Elementary algebra, Inequation

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