Pre-Act Numbers And

On a certain high school athletic team, the ratio of freshmen to sophomores to juniors to seniors is 1:3:4:6. If there are 60 juniors on the team, how many students in total are on the team?

• 90

• 140

• 150

• 180

• 210

Which of the following equations expresses the relationship between x and y in the table?

If the average (arithmetic mean) of 24 consecutive odd integers is 48, what is the median of the 24 numbers?

• 36

• 47

• 48

• 49

• 72

The following consecutive integers add up to 447.  What is the value of x?

• 72

• 73

• 74

• 75

Janelle cut a board 30 feet long into two pieces.  The ratio of the lengths of the two pieces is 2:3.  What is the length, to the nearest foot, of the shorter piece?

• 5

• 6

• 12

• 18

The fixed costs of manufacturing basketballs in a factory are $1400 per day.  The variable costs are $5.25 per basketball.  Which of the following expressions can be used to model the cost of manufacturing basketballs in one day?

• $1405.25b

• 1400 + 5.25b

• 1400b +5.25

• 1400 - 5.25b

What rational number is halfway between 1/5  and  1/3?

• 1/2

• 2/15

• 4/15

• 8/15

What is the sum of the first 4 terms of the arithmetic sequence in which the 6th term is 8 and the 10th term is 13?

• 10.5

• 14.5

• 18

• 21.25

• 39.5

What is the greatest common factor of 42, 126, and 210 ?

• 2

• 6

• 14

• 21

• 42

What is 5% of 50?

• 0.5

• 2.5

• 10

• 25