Chapter 4 Test Form C Worksheet - Tussy & Gustafson, Elementaryalgebra Page 6
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8Tussy/Gustafson, ElementaryAlgebra, 4/e
Chapter 4 Test Form C
R
x
y
| |
+
=
0
S
2
3
18.
Find the x-coordinate of the solution of the system
.
| |
x
2
y
4
+
=
T
3
3
3
a. x = 3
b. x = −2
c. x = 2
d. x = −3
In problems 19 and 20, solve by writing a system of two equations in two
variables.
o
19.
Two angles are complementary. The measure of one angle is 30
more than twice the
measure of the other. Find the measure of the larger angle.
o
a. 70
o
b. 40
o
c. 20
o
d. 50
20.
A boat traveled 48 miles downstream in 4 hours and made the return trip in 6 hours.
Find the rate of the current.
a. 10 mph
b. 4 mph
c. 3 mph
d. 2 mph
Page 6
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