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Unit 4 Review Flashcards | StudBud
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Unit 4 Review
Unit 4 Review
18 terms
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StudBud Administration
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Equations & Inequalities
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
4t=32 therefore t=8
False
True
2
In the expression 2x+4what is the mathematical name given to the number 2
The multiplier
The variable
The coefficient
The constant
3
6+d=15 therefore d=8
True
False
4
When graphing an inequality, what does an open circle represent?
The number is included in the solution
The number is greater than the solution
The number is not included in the solution
The number is less than the solution
5
In the expression 2x+4 what effect does the 2 have on the variable x ?
The variable is raised to the power of 2
The variable divided by 2
2 is added to the variable
The variable is multiplied by 2
6
If
x
is greater than 5, then, 5 is less than
x
True
False
7
Which expressions are true
\frac{12}{\frac{4}{3}}=\frac{12}{1}\cdot\frac{3}{4}
\frac{12}{\frac{4}{3}}=\frac{1}{12}\cdot\frac{4}{3}
\frac{12}{\frac{4}{3}}=\frac{12}{1}\div\frac{3}{4}
\frac{12}{\frac{4}{3}}=\frac{12}{1}\cdot\frac{4}{3}
8
If x=5 what is the value of 2x ?
7
25
10
\frac{2}{5}
9
It says that you have to be at least 48 inches tall to go on a ride. If "x" is the height. Which ineqauality is true?
x<48
x>48
x\le48
x\ge48
10
If x=5 which equation is true?
2+x=7
3x=18
9-x=3
x+1=8
11
Sally had $X, she bought ice cream for $5, and had $2 remaining. What equation represents this situation
5+x=2
x-5=2
x=5-2
x+2=5
12
Dana earns $10 per hour. After working for xhours, she had $90. Which equation represents the situation.
90-10=x
90-x=10
10x=90
x+10=90
13
To find solutions for equations and inequalities, which of the following do you apply?
GCF
Distributive Property
Keep, change and flip
Inverse operations
14
Andy's age is "x" yrs, Jim's age is 8 years more than twice Andy's age. What eapression represents Jim's age?
2x+8
x=8\cdot2
x+8=2
8x-2
15
More than 225 people atended a math conference. Let "m" be the persons. Which inequality represents the situation
m<225
m>225
m\ge225
m\le225
16
x\le4 is 4 a solution to the inequality?
True
False
17
When applying inverse operations to the equation x-6=15 which statements are true?
Subtract 6 from x-6 and subtract 6 from 15
Add 6 to x-6 and add 6 to 15
Add 6 to both sides of the equation
x=9
18
If x=4 which inequalities are true?
3x+5>17
3x+5=17
3x+5<20
3x+5<17
