State Test Practice Mathematics 3

Question 1

Which of the following is an example of a rational number?

Accepted Answer

3/7

Answer

A rational number can be expressed as a fraction p/q where p and q are integers; 3/7 qualifies.

Question 2

A triangle has angles measuring 45° and 60°. What is the third angle?

Accepted Answer

75°

Answer

The sum of angles in a triangle is 180°, so 180° − 45° − 60° = 75°.

Question 3

Which expression is equal to 2³ × 2²?

Accepted Answer

2⁵

Answer

When multiplying powers with the same base, add the exponents: 2³ × 2² = 2^(3+2) = 2⁵.

Question 4

A car travels 180 miles in 3 hours. What is its average speed?

Accepted Answer

60 mph

Answer

Speed = Distance ÷ Time = 180 ÷ 3 = 60 mph.

Question 5

What is the median of the data set: 3, 7, 9, 12, 15?

Accepted Answer

9

Answer

When data is ordered, the median is the middle value; in this set of 5 values, 9 is in the middle.

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