Hello Scott:
Here are the questions: I just finished my other quiz I still did so bad, I am wishing
to get an A from this one so I can pass. I have a D- right now…  I really thank
you. (By the way, I purchased one tutorial from you last night, it cost me $3 from
my balance. I should just add $3 to make it $30 again? How do I pay you? Again,
thanks… I answered some that I really know how to answer.
The thread is set at $25, so you can add a $5 bonus when you accept 
1. Solve. -18 < 3x -7 < - 2
The solution is {x
<x<
-11/3 ≤ x ≤ 5/3
}
2. Solve. 0.7x + 9 < 1.5x – 8
The solution is {x x
}
X ≥ 21.25
3. 5x + 4y = 7
4x – 5y = 9
The lines are:
Perpendicular
4. Graph the equation using the slope and the y-intercept (sorry, I don’t know
how to make the graph…. )
Y=8 X + 2
5
5
It goes through (0, 2), which is 2 above the origin middle point. It has a slope of
8/5, so it also goes through (10, 18) – meaning 10 to the right and 18 up.
5. Media Services charges $20 for a phone and $30 a month for its economy
plan. The equation C=30t + 20 describes the total cost, c, of operating a
Media Services phone for t months.
The total cost for 8 months of service is $ 260
If a customer has only $90 available, how many months of service can she
receive?
2 1/3
What is the correct graph of the equation c=30t+20 (sorry, I don’t know
how to do the graphs from the choices.)
It’s the one that starts low on the left and goes up towards a high point on
the right.
6. Is the graph a function?
Yes or No
YES
7. Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds
of each should be mixed together in order to get 280-lb mixture that is 11%
protein?
Corn = 120
Soy = 160
8. Trains A and B are traveling in the same direction on parallel tracks. Train A
is traveling at 40 miles per hour and train B is traveling 48 at miles per hour.
Train A passes a station at 9:20 am. If train B passes the same station at
9:50 am, at what time will Train B catch up to Train A?
When will Train B catch up with Train A?
12:20 PM
9. Solve. 8x – (3x+5) = 35
Answer: 6 (Right?) It’s actually 8
10. Graph the system of inequalities.
Y > -5
x>6
11.Solve using the addition and multiplication principles.
5+3x<11
The solution is {x x < 2 }(Right?) YES
12. Find the domain of the function.
P(x)=x^2 - 2x + 9
What is the domain of the p?
{x x is a real number}
13.In 1993, the life expectancy of males in a certain country was 72.6 years. In
1998, it was 75.2 years. Let E represent the life expectancy in year t and let
t represent the number of years since 1993
The linear function E(t) that fits the data is
E(t)= 0.5 t + 72.6
Use the function to predict the life expectancy of males in 2009.
E(16)= 80.6 (round to the nearest tenth)
14. Solve using the multiplication principle.
8x= -64
Answer: X=-8 (right?) YES
15. Solve for the indicated letter.
a=8b, for b
The solution is b= a/8
16. Find the slope if it exists.
X= -5
m= N
17. Solve by the elimination method.
3r-78s=-24 (is it -7s, right…)
7r+3s=60
What is the solution to the system?
A. Type the ordered pair (6, 6)
18. Solve using the multiplication principle.
-6x > 1/13
The solution set is {x x
}
X < -1/78
19.Use < or > to make the statement true.
19 > -1 (answer)
YES
20. Solve then graph.
Y – 8 > 12
Answer: {y y > -4} It should be a 20… the graph should go from (----starting at 20, but check for typos in your y-8>12 problem.
How do I graph it? Starts with a bracket or open parenthesis from -4 to -2 or
from -4 to -6?
21. Solve by the elimination method.
5x + 6y = 2
10x + 12y = 4
What is the solution to the system?
A. Type the ordered pair _______
B. There are infinitely many solutions. IT IS THIS ONE
C. There is no solution. (Is this right?)
22. The equation is y= -1777x + 27, 153 can be used to predict the number y of
gun deaths in the United States x years after 2000, that is, x=0 corresponds
to 2000, x=2 corresponds to 2002, x=5 corresponds to 2005, and so on.
Predict the number of gun deaths in 2005 and 2008. In what year will the
number of gun deaths will be 9383?
The predicted gun deaths in 2005 will be 18268
The predicted gun deaths in 2008 will be 12937
The predicted number gun deaths will be 9383 in the year 2010
23. Find the indicated outputs for f(x) = 3x^2 – 4x
F(0)= 0
F(-1)= -1 IT IS 7
F(2)= 4
24.Solve the compound inequality.
5 > -4x + 4 or 9 < -4x + 2
What is the solution?
A. (-1/4, ∞)
B. (-∞, -7/4]
C. (-∞, -7/4] U (-1/4, ∞)
D. (-∞,∞)
IT IS CHOICE C
25. Simplifiy. 3[59-(43-85)]
Answer: 7434 IT IS 303
27. The length of a rectangle is fixed at 11cm. What widths will make the
perimeter greater than 76 cm?
The width must be greater than 27cm?
28. Solve the system of equations by graphing. Then classify the system as
consistent or inconsistent and as dependent or independent.
5x – 4y = 20
4y – 5x = -20
What is the solution of the system of equations?
A. Infinitely many solutions
Dependent
Consistent
29. Solve the following system of equations.
X + 5y = 8 (1)
X = 2 – 5y (2)
There is no solution.
30. Graph the equation and identify the y-intercept.
Y+x=-4
It goes through -4 on both axes.
The y-intercept is (0, -4)
31. Translate to an algebraic expression.
The product of 34% and some number (y).
Answer: x = .34 * y, yes I’d write just 0.34y
32. Amy paid $76.07 for a pair of running shoes during a 15%-off sale. What
was the regular price?)(Round to the nearest cent, if necessary.)
89.49
33. Use the intercepts to graph the equation.
X+2y=4
34. Solve by substitution method.
3x+7y=38
X=42-6y
A. Type an ordered pair for the solution. (-6, 8)
35. Graph on the number line, where x is a real number.
-5 < x < 4
It looks like o-----*
36. Find the slope, if it exists, of the line containing the pair of points.
(9,1) and (10, -1)
The slope is m= -2 (Simplify. Type N if the slope is undefined)
37. Collect like terms.
15x+6y-11x-9y
Answer: 4x – 3y YES
38. Solve.
-0.2x < -12 (Type an inequality)
Answer: {x > 60} You need x > 60, not just > 60
39. Determine whether (-9,-7) is a solution of 2x – 7y = 18.
No
40. Find the slope and the y-intercept.
f(x) = -10x – 4
Answer: The slope is 10x SLOPE is just 10
The y-intercept is (0,-4) (Right?) YES
41. Solve then graph.
2x > 4
Answer: Correct solution {x x > 2}
Choose the correct graph?
[-----------
42. The function H described by H(x)=2.75x + 71.48 can be used to predict the
height, in centimeters, of a woman whose humerus (the bone from the
elbow to the shoulder) is x cm long.
Predict the height of a woman whose humerus is 36 cm long. 170.48 cm
43. 30% of what number is 15.
Answer: 50
44. Multiply. -5/6 * (-9/5)
3/2
45. Solve. 5 x + 1 x =
8
16
11
+ x
16
+ +
+ +
+ +
The solution is x = -11/5
= =
= =
= =
=
= = passes,=a =football team gains 7 yards, loses 10 yards,
46. On three=consecutive
and gains=42=yards.
= What
= number
= = represents the total net yardage?
The total =net= yardage
= =is 39 yards.
= =
= =
= =
= =
= =
= =
= =
47. Use the distributive property to help solve the equation.
[ [
[ [
[ [
7 (w-4) = 21
= = YES = =
= =
Answer: w=7
= =the slope
= =of the line.
= =
48. Determine
(-2,0) and (0,2)
M= 1
+ +
+ +
+ +
+ +
+ +
49. Graph the
equation
+ +
+ +y = 6
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
50. Evaluate.
a + b for a = 30 and b = 6
6
Answer = 6 YES
51. Use the intercepts to graph the equation.
X + 4y = 8
52. Find the domain of the function.
g(x)=
9__
7 – 3x
{x x is a real number and x ≠ 7/3}
53. Solve using the multiplication principle.
-½ x = -9/10
The solution is 9/5
54. Graph the inequality on the plane.
4x + 5y < 20
55. Graph the line containing the given pair of points and find the slope.
(2,0), (-2,-3)
The slope is m= ¾
Thank you so much Scott. I greatly appreciate this. My baby is teething and
so fussy for almost a week now. I have been trying to do this since last night
and I can’t even review. I apologize for the inconvenience this brings you.
Again, my heartfelt thanks! TERRI
Congrats on the baby, by the way, and Happy Thanksgiving