Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter8: Functions
Section8.CR: Review Problem Set
Problem 50CR
Related questions
Question
100%
Solve the following inequalities:
(i) 5(11 − q) < q+ 49
(ii) 7m − 3 < 10m + 2 < 8 − 5m
3
(iii) x 2 ≥ 15 − 2?
- b) The cost structure for iPhones are as follows, fixed cost of $25 and variable cost per unit of $2. The associated demand function is p= 20 − q.
(i) Obtain an expression for the profit, π (q).
(ii) Find the range of output which gives a profit of at least $31.
- c) Use Microsoft Word or Excel to solve the system of linear inequalities:
r + 5t ≤ 5
7t – 2r ≤ 4
r ≥ 0
(NB: clearly identify the solution set by placing a BIG enough ‘S’ to cover that entire region).
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