Integrated Algebra Name: ______ Review Sheet 14 Due 12/21/12 1

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Integrated Algebra
Review Sheet 14
1. Solve the system algebraically:
Name: _____________
Due 12/21/12
y  4x  8
y  2 x  10
2. If the average of 5 numbers is 83.4. The first four numbers are 98, 65, 78, and 86.
What is the fifth number?
3. What is the slope of a line that is perpendicular to the line 3x – 9y = 13?
4. Solve the system algebraically:
m  4n  11
 6n  8m  36
5. A train leaves a train station at 1 P.M. It travels at an average rate of 72 mi/hr. A highspeed train leaves the same station an hour later. It travels at an average rate of 90 mi/hr.
The second train follows the same route as the first train on a track parallel to the first. In
how many hours with the second train catch up with the first train?
6. Find the equation of indirect variation that goes through the point (7, 14).
7. Find the 9th term in the sequence A(n) = 2 + (n -1)(3)
8. Solve:  2 
5 x
2
3
9. The sum of three consecutive integers is 147. Find the integers.
10. 5c + 4 = 19
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