Can someone please help me with my math homework?

Answer:

The variable that will represent the cost of one burger will be "b".

The equation is $39.78/17=b

Answer is $2.34

Step-by-step explanation:

Find out how many students she has.

Find out how much she paid for all burgers.

Divide amount she paid for all the burgers by the amount of students she has.

Finally, you have your answer.

Answer:

15cm and 45cm

Step-by-step explanation:

If one part is one third of the other, then the long one is three times as long as the short one.

If the short one has length x

x + 3x = 60cm

4x = 60cm

x = 15cm

So short one is 15cm and the long one is 3*15cm = 45cm

Answer:

n = 4 - 3

Step-by-step explanation:

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= (3x² - 3x + 5) - (-7x + 4)

= 3x² - 3x + 5 + 7x - 4

= 3x² + 4x + 1. (D)

Answer:

10

Step-by-step explanation:

I simply divided 140/14 and got 10! Hope this helps :)

The 140 percentage of the number 10 is 14

Given data ,

To find the number that is 140% of another number, we can set up the equation:

140% of x = 14

So , 140 percentage of the number x = 14

To solve for x, we need to convert 140% to its decimal form, which is 1.40:

1.40 * x = 14

Now we can solve for x by dividing both sides of the equation by 1.40:

x = 14 / 1.40

Dividing 14 by 1.40 gives us:

On simplifying , we get

x = 10

Therefore , the value of x = 10

Hence , 140 percentage of 10 is equal to 14

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Answer:

1.Martin

2.Dining table

3.The children

4.Dishwasher

Step-by-step explanation:

Noun is a name of a person, place, animal, or a thing.

Stay safe, stay healthy and be blessed.

Thank you.

Answer:

C

Step-by-step explanation:

Trevon started with $29.

After cleaning, his total rose to $41.

Since he received money, we add that amount (n) to his initial amount of money ($29), to equal his total amount ($41)

Answer:

D

Step-by-step explanation:

Answer:

39

Step-by-step explanation:

d+5-f

Plug in the values of d and f

(16)+5-(-18)

Then simplify (Don't forget that since theres a double negative, that changes to a positive.)

21+18

39

Answer:

I'm pretty sure all except K but i might be wrong

Step-by-step explanation:

Answer:

F and H

Step-by-step explanation:

Im sorry if its wrong

Answer:

47.93

Step-by-step explanation:

45*.065=2.925

2.92+45=47.93

Hope this helps :)

answer: [tex]2^{3} a^{3} b^{12}[/tex]

steps:

you multiply each variable by 3.

example being: 2 x [tex]x^{3}[/tex] is [tex]2^{3}[/tex]

you do this with each of them

hope this helps! <3

Answer:

Step-by-step explanation:

Answer:

$23 an hour.

Step-by-step explanation:

divide 172.50 by 7.5

Answer:

9 : 1

Step-by-step explanation:

Let the correct answers be denoted by C.

Let the incorrect answers be denoted by I.

Given the following data;

Correct answers = 45 answers

Incorrect answers = 50 - 45 = 5 answers

Ratio of correct to incorrect answers;

C : I = 45 : 5

Dividing by 5, we have;

C : I = 9 : 1

Answer:

one basket release you are dividing then it would be 9

Answer:

90 pages in 10 hours :)

Answer:

90 pages

Step-by-step explanation:

First, you need to find the unit rate of how many pages he can read.

So, you divide 18 pages by 2 hours = 9 pages per hour.

Then, you multiply 9*10 hours to find out how many pages he will read in 10 hours.

You get 90.

Answer:

800 Kwh

Step-by-step explanation:

To solve this problem, we need to find the difference in energy saved and then multiply by the cost of 1kWh of electricity

Let's first of all calculate the the difference in energy saved

Data;

[tex]1200 - 400 = 800kWh[/tex]

Maggie would've saved 800kWh in one year.

But since we were not given a standard cost of electricity, we would assume that 1kWh will cost $1.

So, to determine how much she must've saved, we simply multiply $1 by 800kWh

[tex]1 * 800 = $800[/tex]

Using our assumptions, she would've saved $800 in one year.

Learn more on rate of power here;

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Answer:

3x7

Step-by-step explanation:

7 + 7 + 7 is 3 x 7 because 7x3=21 and 7+7+7=21

Answer:

Step-by-step explanation:

I think u have the right answer because on the graph im confused how he can spend 100 minutes studying and get lower than one he spent almost 65 minutes less on

Answer:

Can someone pls help me with mine

Step-by-step explanation:

Answer:

Step-by-step explanation:

You may get a bit help from this...

Hope so

:D

Answer:

39.25 square ft

Step-by-step explanation:

[tex]Area \: of \: sector = \frac{45 \degree}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{1}{8} \times 3.14 \times {10}^{2} \\ \\ = \frac{3.14 \times 100}{8} \\ \\ = \frac{314}{8} \\ \\ = 39.25 \: {ft}^{2} [/tex]

Answer:

24

Step-by-step explanation:

The common multiple that 8 and 12 have in common is 24. This is because 24 is the first multiple of 8 and 12 that is shared

Answer:

The multiples of 8 are: 8, 16, 24, 32, 40, … .

The multiples of 12 are: 12, 24, 36, 48, 60, … .

LCM = 24

Step-by-step explanation:

(PLATO answer)

Answer:

2%

Step-by-step explanation:

Answer: 2%

Step-by-step explanation: Method 1

Express the ending population as a percentage of the starting population:  

127000 /129540= 1.02

1.02×100=  102%

Subtract the starting 100% to get the percent increase:

102%−100%= 2%  

​

Answer:

b

Step-by-step explanation:

Answer:

-11/6

Step-by-step explanation:

Slope can be found with this equation:

(y₁ - y₂) / (x₁ - x₂)

What this essentially tells us to do is to put one set of the x and y coordinates into x₁ and y₁, respectfully. Then, put the other set of x and y points as x₂ and y₂.

With this scenerio, we can substitute the given points into the formula.

(6 - (-5)) / (-4 - 2) =

(6 + 5 ) / (-6) =

11 / (-6) =

-11/6

The slope is  - 11/6

Answer:

0 and 4

Step-by-step explanation: