# Praxis Mathematics Exam 2

#### A shirt that was selling for $24 has had its price reduced by 15%. How much does it cost now?

Multiply the original price by 0.15, and then subtract this amount from the original price.

#### Identify the missing term in the following geometric progression: 16, -4, 1, -¼ ....

#### If Isaac scored 16 points in the first half of a basketball game and half as many in the second half, how many did he score in the game in all?

Divide 16 by 2 and add 8 to the dividend.

#### Don gets paid $9 an hour, but if he works more than 30 hours in a week his rate of pay is increased by ½. How much would Don get paid for a 38-hour work week?

The problem can be solved with the following expression: 30 (9) + 8 (9 x 1.5)

#### Solve: 3/5 - (-2) =

Subtracting a negative number is the same as adding it.

#### The five starters on a basketball team each scored at least 5 points and no more than 17 points in a basketball game. Which of the following values is a reasonable estimate of the average score of each player?

It is reasonable to assume that the average score will be close to the middle of the range.

#### Solve 3 1/5 x 5 =

Before multiplying, convert the mixed number to an improper fraction.

#### If 5x + 7 =8x - 2, then

Solve the equation for x by subtracting 5x from both sides, adding 2 to both sides, and then dividing both sides by 3.

#### 17/68

The simplest form of this fraction can be found by dividing both sides by 17.

#### If Edgar eats 8 2/3 doughnuts in a week and Ellen eats 4 ½ doughnuts in a week, how many more doughnuts will Edgar have eaten?

Convert the fractions to the lowest common denominator, sixths, before you subtract.

#### What is the volume of rectangular solid that is 8 inches long, 6 inches wide, and 4 inches tall?

Volume is found by multiplying length, width, and height.

#### George buys 6 t-shirts for $5 each and 4 pairs of jeans for $8.50 each. He uses the following expression to calculate the total amount of money spent: 6 (5) + 4 (8.5). Which of the following expressions could George also have used?

George bought four items at both $5 and $8.5, but he also bought two more items at $5.

#### 12 x -4x + 8 =

Remember that unlike terms cannot be combined.

#### What percent of 38 is 16?

Divide 16 by 38 and multiply by 100.

#### Which of the following units of measurement could no be used to report the length of a pencil?

Liters are a unit of volume, not length.

#### If the value of x is between 0.00776 and 0.0506, which of the following number could be x?

When solving this sort of problem, it may help to write the two given numbers so that one is under the other and the decimal points are aligned.

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