Solve:
25. Elaine's height is 67in. Determine, in terms of an inequality, those weights W that will keep her body mass index below 25.

76. A long-distance telephone call using Down East Calling costs 10 cents for the first minute and 8 cents for each additional minute. The same call, placed on Long Call Systems, costs 16 cent for the first minute and 6 cents for each additional minute. For what length phone calls is Down East Calling less expensive?

80. Bayside Insurance offers two plans. Under plan A, Giselle would pay the first $50 of her medical bills and 20% of a bill after that. Under plan B, Giselle would pay the first $250 of bills, but only 10% of the rest. For what amount of medical bills will Plan B save Giselle money?(Assume that her bills will exceed $250)

Intersections, Unions, and Compound Inequalities
Solve and graph: Report solution as a graph, as a solution set and as an interval 38*, 58*
38*. -4 <= 7 - 3x <= 4

Graph and write interval notation
58*. 7 - 3x < - 4 or 7 - 3x > 4
5 5

Solve
66. Young's rule for determining the amount of a medicine dosage for a child is given by:
Where a is the child's age and d is the usual adult dosage, in milligrams. A 5 year-old needs medication. What adult dosage can be used if a child's dosage must stay between 50 mg and 100 mg? Find the equivalent adult dosage.

Absolute-value equations and inequalities, Find the distance between the points on a number line

36. | 9y - 2| = 17

52. 2|2x - 7| + 11 = 25

Solve: Report solution as a graph, as a solution set and as an interval 88*,90*
88. |5x + 2| <= 13

90. |7 - 2y| > 5

Systems of inequalities in two variables, graph the system of inequalities. Find the coordinates of any vertices formed.

34. y < x
y > - x + 3

44. 4y - 3x >= - 12
4y + 3x >= - 36
y >=0
x >= 0

Solution Summary

The solution shows how to solve and graph compound inequalities and system of inequalities in detail.

Please see the attached document for proper formatting of these questions.
Thanks.
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Solve by graphing. Indicate whether each system is independent, inconsistent, or dependent.
1. y= 2x-1
x+y = 2
2. 3x - y = 4
3x - y = 0
Solve each system by substitution method.

See the attached file.
CheckPoint
11) Bayside Insurance offers two health plans. Under plan A, Giselle would have to pay the first $190, plus 40% of the rest. Under plan B, Giselle would pay the first $220, but only 30% of the rest. For what amount of medical bills will plan B save Giselle money? Assume she has over $220 in

1. (Solve system by the substitution method. Determine whether the equations are independent, dependent or inconsistent.)
2x - y = 3
2y = 4x - 6
2. (Solve system by the substitution method. Determine whether the equations are independent, dependent or inconsistent.)
y = 3(x - 4)
3x - y = 12
3. (Solve sy

Set 5
#22
The addition method. Solve each by addition
2x = 2 - y
3x + y = -1
#26
Solve each by addition method. Determine whether the equations are independent, dependent or inconsistent
X - y = 3
-6x + 6y = 17
#30
-3x + 2y = 8
3x + 2y = 8
#36
Equations involving fractions or decimals. Solve each syste

Solve the following system of linear inequalities by graphing.
3x+4y is less than or equal to 12
x+3y is less than or equal to 6
x is greater than or equal to 0
y is greater than or equal to 0

1. Graph the inequality.
y 1
2. Graph the inequality.
y 3x
3. Given f(x) = 4x + 1, find f(3).
4. Given f(x) = 5x2 - 3x + 1, find f(-2).
A) -13
B) 15
C) -25
D) 27
5. Given f(x) = x2 + 5x + 3, find f(0).
6. Rewrite the equation 4x - 10y = 11 as a function of x.
A)
B)
C)

1. determine whether the given numbers are solutions of the inequality. 7, -13, -17, -1
y-10>2y-4 is 7 a solution?
2. write the set (xlx_>1) in interval notation
3. write interval notation for the set (xl-1>x>-3)
4. write interval notation for the given graph ( strai