Due: 29 August 2011
Math 1090-002
22 August 2011
Section 1.1 Homework
Instructions: Complete the following problems in the space provided. Please
show all of your work; I reserve the right to award no credit to a correct solution
with no justification. You can earn up to 20 points on the assignment.
Solve the following linear equations and check your solutions (4 points each):
4. 3 − 4x = 7.
16.
5x
2
−4=
(2x−7)
.
6
1
42. Solve the rational equation and check the domain to ensure that the solution
is valid (4 points):
2x
4
−1=3−
.
x−3
x−3
81. There are three consecutive even integers. Half the sum of the second and
third of these integers is 55. What are the integers? (4 points)
2
90. A car rents for $45 per day with unlimited mileage, or for $25 per day plus
18 cents per mile. How many miles need to be traveled for the rates to be equal?
(4 points)
3