Math 150
Test 1
Name:_____________________
Show all necessary work NEATLY, CLEARLY, and SYSTEMATICALLY. Any understatement and/or incorrect statement may be
penalized.
1.
(5)
Simplify:
2.
(5) Solve:
3.
(5) Compute:
4.
(5)
5
3
(a  2)  6 and (a  2)  1. Write
2
4
the solution in interval notation.
Simplify:
Math 150
5.
(5) Solve:
6.
(8) How
Test 1
Name:_____________________
5
C  ( F  32) for F.
9
many gallons of a 20% acid solution must be mixed with 6 gal of a 30% acid solution
to make a 22% solution?
Math 150
7.
(5)Solve:
8.
(8) The
Test 1
Name:_____________________
ax – by = cx + z for x.
measures of two angles in a triangle are equal. The third angle measures 2 times the
sum of the equal angles. Find the measure of the third angle.
Math 150
9.
(5) Solve:
Test 1
6a  (9a  1)  3(a  1)  2 . Graph the solution and write the solution in interval
notation.
10.
(5) Solve:
Name:_____________________
3p  2
1
 p2 .
4
2
Math 150
11.
(5) Solve:
Test 1
Name:_____________________
0.5(6 x  8)  0.8x  7 or 4( x  1)  7.2 . Graph the solution.
12. (8) TTC invested $4000 more in 4% account than in the 3% account. If TTC received $720 in
interest at the end of the year how much did TTC invest in each account?
Math 150
13.
(5) Solve:
14. (5) Solve:
Test 1
 4 8  x  2  14 . Write the solution in interval notation.
x2 x4
x4

 2
5
2
10
Name:_____________________
Math 150
Test 1
Name:_____________________
15. (5) Solve: 4x  2  7  7 .Write the solution in interval notation.
16.
(8) Four
times the smaller of two consecutive odd integers is the same as 73 less than 5 times
the larger. Find the middle integers.