Question

Write a function rule for the table.

Hours Worked Pay
2 $12.50
4 $25.00
6 $37.50
8 $50.00








p = h + 12.5


h = 6.25p


p = 12.5h


p = 6.25h

Answer 1

Define a variable and write an expression for the phrase.

the quotient of 2 times a number and 19

Answer 2

Which set of numbers is the most reasonable to describe a person’s hat size?


irrational numbers


whole numbers


rational numbers


integers

Answer 3

The total cost to rent a row boat is $18 times the number of hours the boat is used. Write an equation to model this situation if c = total cost and h = number of hours.


h = 18c





c = 18h


c – 18 = h

Answer 4

Which set of numbers is the most reasonable to describe the number of desks in a classroom?


rational numbers


integers


whole numbers


irrational numbers

Answer 5

Define a variable and write an expression for the phrase.

8 minus a number


8/n



8 – n


n/8


8n

Answer 6

Write a function rule for the table.

Days Cost to Rent a Truck
1 34
2 56
3 78
4 100








c = 12d + 22


c = 22d + 12


c = 22d


c = 22d + 22

Answer 7

Which of the following is false?


the cost to mail an envelope and the weight of the envelope is a positive correlation


amount of exercise and percent of body fat is a negative correlation


the graduation rate in a city and the rate of unemployment in a city is a positive correlation


a child’s age and a child’s shoe size is a positive correlation

Answer 8

Evaluate the formula V=Bh/3 for B = 9 in.2 and h = 32 in.


32 in.3


9.6 in.3


288 in.3


96 in.3

Answer 9

Are you sure

Answer 10

Over the first five years of owning her car, Gina drove about 12,700 miles the first year, 15,478 miles the second year, 12,675 the third year, 11,850 the fourth year, and 13,075 the fifth year. Find the mean, median, and mode of this data.


mean = 13,156; median = 12,700; no mode


mean = 13,156; median = 12,700; mode = 3,628


mean = 12,700; median = 12,700; no mode


mean = 12,700; median = 13,156; no mode

Answer 11

The function rule for the table is: p = 6.25h, where p represents the pay and h represents the hours worked.

Answer 12

Let's define the variable as "x". The expression for the given phrase would be:

(2x) / 19

Answer 13

The most reasonable set of numbers to describe a person's hat size would be whole numbers. Hat sizes are typically represented by whole numbers such as 6, 7, 8, etc. Irrational numbers, rational numbers, and integers are not commonly used to describe hat sizes.

Answer 14

The equation to model this situation would be:

c = 18h

Answer 15

The most reasonable set of numbers to describe the number of desks in a classroom would be whole numbers. Desks are typically counted using integers, as they are discrete items that cannot be divided or expressed as fractions. Therefore, whole numbers, which include zero and all positive integers, would be the most appropriate set to describe the number of desks in a classroom. Rational numbers and irrational numbers are not typically used to describe discrete quantities like the number of desks in a classroom.

Answer 16

Let's define the variable as "x". The expression for the given phrase "8 minus a number" would be:

8 - x

Answer 17

The function rule for the table is: c = 22d + 12, where c represents the cost to rent a truck and d represents the number of days.

Answer 18

The false statement is: the graduation rate in a city and the rate of unemployment in a city is a positive correlation.

Answer 19

To evaluate the formula V=Bh/3 for B = 9 in.2 and h = 32 in., we substitute the given values into the formula:

V = (9 in.2)(32 in.) / 3

V = 288 in.3

Therefore, the evaluated result is 288 in.3.

Answer 20

I apologize for the incorrect calculation in my previous response. Let's evaluate the formula correctly:

V = Bh/3

Plugging in B = 9 in.2 and h = 32 in.:

V = (9 in.2)(32 in.) / 3

V = 288 in.2 / 3

V = 96 in.2

Therefore, the correct evaluated result is 96 in.2. Thank you for pointing out the error, and I apologize for any confusion caused.