GED Math Test #7 3

Question 1

Solve the system: x + y = 10 and x − y = 4

Accepted Answer

x = 7, y = 3

Answer

x = 6, y = 4

Answer

x = 8, y = 2

Answer

x = 5, y = 5

Question 2

A circle has a diameter of 10 cm. What is its circumference? (Use π ≈ 3.14)

Accepted Answer

31.4 cm

Answer

78.5 cm

Answer

15.7 cm

Answer

62.8 cm

Question 3

Which number is irrational?

Accepted Answer

√7

Answer

√9

Answer

0.75

Answer

4/3

Question 4

A worker earns $960 and saves 30% of it. How much does she save?

Accepted Answer

$288

Answer

$192

Answer

$300

Answer

$320

Question 5

The angles of a quadrilateral measure 90°, 85°, 110°, and x°. What is x?

Accepted Answer

75°

Answer

65°

Answer

80°

Answer

95°

Question 6

Convert 0.045 to a fraction in simplest form.

Accepted Answer

9/200

Answer

9/100

Answer

45/100

Answer

9/20