Assignment:
1. Multiply -2/7*3/5
2. 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 12% protein?
How many pounds of the cornmeal should be in the mixture? ___ Pounds
How many pounds of the soybeans meal should be in the mixture? ___ pounds
3. Solve by the elimination method
3r - 7s = 11
7r + 3s = 45
4. Solve then graph
7x > 63
5. Use the intercepts to graph the equation
X+3y =6
6. In 1992, the life expectancy of males in certain country was 62.2 years. In 1998, it was 65.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1992.
The linear function E(t) that fits the data is
E(t) = _t +_
Use the function to predict the life expectancy of males in 2006
E (14) =_
7. Simplify -1[-13-(98-75)]
8. Solve 6>-3x+5 or 8 <-3x+4
9. Find the slope if it exist
X=-6
M=_
10. Graph the equation
Y=4
11. Collect the like terms
10u + 3v - 4u -8v
12. Decide whether the pair of lines are parallel, perpendicular, or neither
4x + 3y =2
3x + 4y =6
13. Solve
5/4x + 1/8x =7/8 + x
14. Solve by the substitution method
2x + 5y = 9
x = 15 - 6y
15. Use the distributive property to help you solve the equation
8 (w-2)= -16
16. Find the indicated outputs for f(x) = 3x² - 5x
F(0)
F(-1)
F(2)
17. Solve using the addition and multiplication principles
7 + 9x < 25
18. Solve for the indicated letter
a = 9b, for b
19. Graph the equation and identify the y intercept
Y + x = -4
20. On three consecutive passes, a football team gains 5 yards, loses 15 yards, and gains 21yards. What number represents the total net yardage?
21. Use the intercepts to graph the equation
x + 24 = 4
22. Solve then graph
y-1 > -13
23. Solve
0.7 + 1 < 1.5x - 8
24. 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 shoulder) is x cm long.
Predict the height of a woman whose humerus is 39cm long.
25.Find the domain of the function G(x)= 5/ 2-5x
26. The equation y= -1777x+25,153 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=4 corresponds to 2004, And so on. Predict the number of gun death in 2004 and 2005. In what year will the number of gun death be 11,160?
27. Plot (0, -2) On the coordinate axes
28. Determine whether (-1,2) is a solution of 9x = 4y-8
29. Solve -0.4x < -12
30. Solve -20 < 3x - 3 < -2
31. Amy paid $91.06 for a pair of running shoes during a 35%-off sale. What was the regular price?
32. Find the slope (5,4)(10,-4)
33. Graph the system of inequalities
Y > -1
X > 4
34. Solve using the multiplication principle -1/8x = -9/10
35. Solve by the elimination method
2x + 6y = 4
4x + 6y = 8
36. Solve using the multiplication principle -6x > 1/3
37. Media Services charges $20 for a phone and $30/month for its economy plan. The equation c=30t+20 describes the total cost, c of operating a Media Services phone for t months.
If a customer has only $90 available, how many months of service can she receive?
38. The width of a rectangle is fixed at 29 cm. What lengths will make the perimeter greater than 84cm?
39. Graph the equation using the slope and the y intercept
Y = 4/3x + 6
40. Solve the following system of equations
x + 3y =6 (1)
x = 2 - 3y (2)
41. Find the domain of the function
P(x) = x² - 2x +1
42. Graph the number line, where x is a real number
-4 < x < 4
43. Graph the inequality on a plane
3x + 4y < 12
44. Find the slope and the y intercept
F (x) = -10x -7
45. Solve
8x - (2x + 5) = 19
46. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hr. and Train B is traveling at 120 miles per hr. Train A passes a station at 4:20pm. If train B passes the station at 4:35pm, at what time will train B catch up to train A When will train B catch up with train A?