Help with answer to #21
Answers are
1 2 3 4 5

Answer:

15%

Step-by-step explanation:

17     =    x

20       100

17*100 = 20x

1700 = 20x

15 = x

Answer:

%15 discount

Step-by-step explanation:

i did a test on this

Answer:

1

Step-by-step explanation:

because power of x is 1. Hope you will understand if not then comment. I will explain

Answer:

y = 8x – 25

Step-by-step explanation:

Answer:

8x-25=y

Step-by-step explanation:

All we need is slope. (y2-y1)/(x2-x1). Now we just substitute values--(7+1)/1=8

Now we can plug in the slope as m, so

8x+b=y

Now all we have to do is plug in a point value and find B.

24+b=-1

Subtract 24 from both sides

b=-25

CHECK

32-25=7

Correct

Answer:

it would be 90

Step-by-step explanation:

The scale is 1:6. that means that the object is 6 times larger then the scale drawing.

Answer:

The value of this would be 83,000 because 10 multiply to eachother 4 times is 10,000 than 8.3 times that is 83000, sorry guys

Step-by-step explanation:

The red dot and arrow are the solutions. The solid dot means the number is included. So it is equal to -5, the arrow is going to the right, so it is also greater than -5

The inequality is:

X >= -5

Answer:

no there not

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

if you add -7x and - 6x you get -13x then you have to add x so you get -12x obviously showing that they are not equivalent.

Answer:

idek man

Step-by-step explanation:

Answer:

A negative number means cups are being used and a positive number means cups are being delivered to the shop.

2329 paper cups are left by the end of the week

On Thursday anywhere from 100-400 cups were used, I found this by looking at the number of cups used the day before and the day after.

Step-by-step explanation:

Answer:

its 10

Step-by-step explanation:

because all you have to do is add a zero for each place you go

Answer:

First one 10

Step-by-step explanation:

Answer:

Amelia rented a DVD and it was due to be returned on 26 November. She actually returned it to the shop on 12 December. The rental shop applies a fine of 9p for every day the DVD is overdue.

Work out the total fine paid by Amelia. Give your answer in £

Answer:

14 hours

Step-by-step explanation:

So we know that it take him 1 hour to paint half of a painting and he has 7 to do all you have to do is multiply 7 times 2 because it takes 2 hours to do 1 painting.

Answer:

I believe it should take an artist 14 hours. It's 14

Step-by-step explanation:

I did the math and got 14. I hope you have a good day!

Answer:(choice b) b: 98

Step-by-step explanation:

Answer:

98

Step-by-step explanation:

Hope this helps!

Answer: Many researchers, engineers and environmentalists are expressing deep concerns about changes in the overall climate of the planet. Fossil fuels are being continuously used to produce electricity. The burning of these fuels produces gases like carbon dioxide, methane and nitrous oxides which lead to global warming. Deforestation is also leading to warmer temperatures. The hazard of global warming is continuously causing major damage to the Earth's environment. Most people are still unaware of global warming and do not consider it to be a big problem in years to come. What most people do not understand is that global warming is currently happening, and we are already experiencing some of its withering effects. It is and will severely affect ecosystems and disturb ecological balance. Because of the treacherous effects of global warming, some solutions must be devised. The paper introduces global warming, elaborates its causes and hazards and presents some solutions to solve this hot issue. Above all, alternative energy sources (solar, wind, hydro, geothermal, bio mass) need to be seriously pursued. Finding and using renewable sources of energy is one of the methods to combat the ever increasing global warming effectively.

Step-by-step explanation:Optimize Buildings. One of the more popular ways for a city to reduce its carbon footprint is to make its buildings more energy efficient. There are a number of practical, cost-effective ways that building owners can lower their emissions.

THIS CAN BE DONE TO REDUCE CARBON FOOTPRINT

Answer:

No solution (this has been checked btw)

Answer:

5. A

6. B

7. A

Step-by-step explanation:

Answer:

X can be any number but because there is a line under the greater than symbol x > -42

Step-by-step explanation:

-42/7=-6

Answer:

Step-by-step explanation:

[tex] \frac{ x}{7} \geqslant - 6[/tex]

[tex]x \geqslant - 42[/tex]

Answer:

Hope this helps :)

Step-by-step explanation:

15

(3^5)÷(3^5)

Simplify 3^5

243÷243

1

(3^5)÷(3^5)

3^5/3^5=3^5-5

3^5-5

3^5-5= 1

1

Formula: x^a/x^b=x^a-b

16

2^10/2^10

Cancel out 2^10

1

2^10/2^10

2^10/2^10=2^10-10

2^10-10

2^10-10=1

1

Formula: x^a/x^b=x^a-b

17

x^7/x^7x≠0

x≠0

18

(4x+2y)5÷(4x+2y)^5(4x+2y) ≠ 0

5/(4x+2y)^3 ≠ 0

5 ≠ 0

≠ =-y/2

19

No solution

20

p^4/p^4p ≠ 0

p≠ 0

no solution

Answer:

4.0303838 2938.3939 xxx

Answer:

Step-by-step explanation: Let variable x represent the 15¢ stamps, and variable y represent 20¢ stamps.

x= 3y-8

0.15x+0.20y = 4

Replace x in the second equation by (3y-8)

0.15(3y-8) + 0.20y = 4

0.45y - 1.2 +0.20y = 4

Collect like terms;

0.45y+0.20y = 4+1.2

0.65y = 5.2

Divide both sides by 0.65 to solve for y;

y= 5.2/0.65

y = 8

Replace in equation " x=3y-8 " to solve for x;

x = (3*8) -8

x=24 - 8

x = 16

Therefore, the 15¢ stamps are 16 in number, and the 20¢ stamps are 8 in number.

5/9 = 25/18

Cross multiply:

5 * 18 = 9 * 25

Simplifying

5 * 18 = 9 * 25

Multiply 5 * 18

90 = 9 * 25

Multiply 9 * 25

90 = 225

Solving

90 = 225

No they are not

Answer:

The inequality for w is 2

The negative sign on an exponent means the reciprocal. Think of it this way,

just as a positive exponent mean repeated multiplication by the base, a negative exponent means repeated division by the base.

Example

So 2^ (-4)= 1 / (2^4)=1/(2*2*2*2)=1/16

So that answer would be 1/16

Answer:

180 i think please tell me if im wroung

Answer:

it would just be 135?

Step-by-step explanation:

Answer:

8 books

Step-by-step explanation:

12/3= 4

12-4 = 8

There are 8 books does Andy check out.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

Angel checks out 12 library books and Andy checks out 1/3​ less than that.

Now,

Since, Angel checks out 12 library books and Andy checks out 1/3​ less than that.

Hence, The number of books for Andy = 12 - 1/3 of 12

                                                            = 12 - 1/3 × 12

                                                            = 12 - 4

                                                            = 8

Thus, There are 8 books does Andy check out.

Learn more about the divide visit:

https://brainly.com/question/844312

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Answer:

7

Step-by-step explanation:

2n - 3

n = 5

Substitute in the given value and solve

2(5) - 3

10 - 3

7

Answer:

D) 12.25x+3.99=77.49

Step-by-step explanation:

Each shirt costs $12.25, so that means 12.25 times x the amount of shirts. Then, you add the $3.99 shipping amount. All of this adds up to 77.49.

So the answer would be D.

Answer:

D. 12.25x +3.99 = 77.49

Step-by-step explanation:

We don't know the amount of shirts Mrs. Garfield order, so we can assume that the amount of shirts is x.

We know the amount per shirt, so we can assume the total cost for the shirts is  12.25x

The problem also explained that there was a 3.99 shipping cost, so our equation would look like this.

12.25x+3.99

Lastly, we are told the total cost of the shipment. The total cost is 77.49. Since, 12.25x+ 3.99 is supposed to be the same as 77.49, the equation should look like this.

12.25x +3.99 = 77.49

Final Equation:

12.25x +3.99 = 77.49

This is the same answer as D. on the worksheet.

Answer:

4. -9

Step-by-step explanation: