Each order of nachos costs $3.75 at the concession stand and each drink costs $2.25. Which statement is true if Sarah bought three orders of nachos?

A
The product of 3(–2.25) means Sarah has $6.75 less when she bought 3 orders of nachos.

B
The product of 3(2.25) means Sarah has $6.75 more when she bought 3 orders of nachos.

C
The product of 3(–3.75) means Sarah has $11.25 less when she bought 3 orders of nachos.

D
The product of 3(3.75) means Sarah has $11.25 more when she bought 3 orders of nachos.

Answer:

Density is defined as mass per unit volume:

density = mass/volume

Density can be calculated using the mathematical formula (expression):

d = m ÷ V

where d = density, m = mass, V = volume

The greater the density, the more mass per unit volume.

The unit of density derived from SI units is kilograms per cubic meter, kg/m3 or kg m-3.

More commonly, densities are given in g/mL (g mL-1) or g/cm3 (g cm-3 or g/cc).

Density is a characteristic property of pure substances so density can help identify a particular pure substance.

Since different substances have different densities, density can also be used to separate one substance from another.

In general, solids are more dense than liquids which are more dense than gases:

density of solid > density of liquid > density of gas

Step-by-step

Answer:

0.338 g/mL

Step-by-step explanation:

Density is the mass per unit volume of any object. It is calculated by dividing the mass of an object by its volume. This is:

ρ = m/V

ρ = 4.05 g  / 12 mL

ρ = 0.3375 g/mL

ρ ≅ 0.338 g/mL

Answer:

-159

Step-by-step explanation:

The age of Mary and the age of Beth will be 10 years and 4 years, respectively.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Three times Mary’s age added to Beth’s age is 34 years. Half of Mary’s age minus Beth’s age is 1 year.

Let 'x' be the age of Mary and 'y' be the age of Beth. Then the equations are given below.

3x + y = 34        ...1

x/2 - y = 1          ...2

From equations 1 and 2, then we have

3(2y + 2) + y = 34

6y + 6 + y = 34

7y = 34 - 6

7y = 28

y = 4

Then the value of the variable 'x' is given as,

3x + 4 = 34

3x = 30

x = 10

The age of Mary and the age of Beth will be 10 years and 4 years, respectively.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

c

Step-by-step explanation:

Jasmine can work from 0 hours to 15 hours

Answer:

Step-by-step explanation:

jjjjj

The graphical function representation of a function, represents the mapping of the domain of the function to the range of the function

The sum of the coordinates of the point is 7.25

The reason the above values are correct is as follows;

The given parameter is;

The point (9, 7) is on the graph y = f(x)

Required:

A point on the graph, 2·y = (f(2·x)/2) + 2

Solution:

Let x = 9/2, given that (9, 7), is on the graph, f(x), we get;

f(2·x) = f(2 × 9/2) = f(9) = 7

Therefore;

2·y = (f(2·x)/2) + 2 = (7/2) + 2) = 5.5

y = 5.5/2 = 2.75

y = 2.75

The coordinate of the point is (x, y) = (2.75, 9/2)

The sum of the coordinates of the point is 2.75 + 9/2 = 7.25

Learn more about functions here:

https://brainly.com/question/21222613

Answer:

A. 1%

B. 80%

C. 0.8, 8/10

Step-by-step explanation:

A. There are 100 blocks so each block is 1/100 which is 1%

B. As you can see, there are 80 blocks shaded so that would be 80/100 which is 80%

C. You can represent a percent as a decimal or a fraction

Hope this helped!

Answer:

For the first one 13 7/8 - 9 3/4= 4 1/8

Step-by-step explanation:  turn to an improper faction it helps me

Answer:

4 1/8

Step-by-step explanation:

13-9=4

3/4=6/8

7/8-6/8=1/8

13 7/8-9 3/4=4 1/8

Answer:

20  square units

Step-by-step explanation:

First you would divide the sqaure  into 2 triangles and 1 suqare then you would find the area of those

Answer:

its the one you have clicked on

Step-by-step explanation:

Answer:

A,E,F

Step-by-step explanation:

uhh do you need help with anything..? please leave a picture of it tho

Answering the last two questions correctly

Answer:

option D

Step-by-step explanation:

Answer:

C is the answer

Step-by-step explanation:

Answer:

1. QS and RT= 15

2. Im not positive but I think it's TQ=18

Step-by-step explanation:

For question 1, you would do 6x+3=8x-1 and solve to get the result of x=2

Then you'd plug in 6 and get QS and RT=15

For the second one I am unsure because I wasn't positive how to solve but it seems like the side RQ might be 1/2 of TQ. Sorry if thats wrong I can try and help more if you need

Answer:

For the first one

x= About 32.02

y= About 27.58

z= About 55.16

For the second one

x= 6

y= 12

z= about 16.97

Step-by-step explanation:

Their all really simple

These are special right triangles, a 45, 45, 90 and a 30, 60, 90 triangle. The formla for these triangles are shown in the picture below.

Now for the first one ]

Lets find Z first

Now this is a 45 special right triangle so we know the other side s 39 but the hypotenuse is n[tex]\sqrt{2}[/tex] (I’m using N becuase x and y is taken) So n is basically 39 (look at the image below) and just solve that. Now for x and y. We know its a 30, special right triangle. We know that 39 here is already the answer for  N[tex]\sqrt{3}[/tex] so make an equation to find the n and you’ll get 27.58 for y. Now For x, its just doubled the y.

For the second one this is easier

We know that the x is (6) becuase its already in the radical number, now to find the hypotnuse, we double that and get 12. Now we know what y is becuase since the 2nd triangle is a 45/45/90, we know that 12 is y, the hypotnuse is just N[tex]\sqrt{2}[/tex] and we just plug in the n with 12 and solve it!

Answer:

ummm there is nothing

Step-by-step explanation:

Answer: $41.24

Step-by-step explanation: Hope this helped.

Answer:

180- 117= 63 Because they are supplementary angles.

Step-by-step explanation:

Answer: 180- 117= 63 Because they are supplementary angles.!

Hope i helped!

Answer:

39 ft 6 inches

Step-by-step explanation:

Answer:

Get a teacher and see if they will help u or show u how to do it

Step-by-step explanation:

Hope this helps

Answer:

120ft

Step-by-step explanation:

it would be 120 bc if he eats 15ft an hr multiply 15 by 8 equals 120ft

Answer:

184.26   in 2

Step-by-step explanation:

Answer:

184.26

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Mathematics includes the study of such topics as quantity, structure, space, and change. It has no generally accepted definition. Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof.

Step-by-step explanation:

Mathematics is the study of numbers, shapes and patterns. The word comes from the Greek word "μάθημα" (máthema), meaning "science, knowledge, or learning", and is sometimes shortened to maths (in England, Australia, Ireland, and New Zealand) or math (in the United States and Canada). ... Numbers: how things can be counted.

Therefore, Mathematics is the abstract study of topics such as quantity (numbers), structure, space, and change!

Answer:

x + 14 = 5x - 74

x - 5x = -4x

-74 - 14 = -88

-4x = -88

-4x/4 = -88/-4

x = 22

Step-by-step explanation:

The steps above are how you would evaluate a problem like that!

Hope this helps!!

Answer:

Let a = the larger number and b = the smaller

a + b = 14

a - b = 18

We can add the 2 equations together.

2a = 32

2a/2 = 32/2

a = 16

Answer:

64

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

Answer:

Plot the ordered pairs of the independent variable and the dependent variable on the coordinate plane.

Step-by-step explanation: