Simplify: (84) / (-7) =

A. -12
B. 12
C. -1/12
D. 1/12

Answer: ~3.8 mph (see below)

What we know:

How to solve:

We need to find what number when multiplied with 1045, will equal 3600. The unknown will be a variable x, and the seconds will be represented with s. Then, we need to multiply this number with the value of the miles (m) to find how many miles are traveled in that hour (h).

Finding X (in seconds)

Set up equation                                                       H = sx

Substitute                                                           3600 = 1045x

Divide                                                                 /1045   /1045

Solution                                                 3.44497608 = x

Finding Miles

Set up equation                                                 mph = x(m/s)

Substitute                                                           mph = 3.44497608(1.1/1045)

Simplify                                                               mph = ~3.79/3600

Convert                                                               mph = ~3.8 miles per hour

Answer:

53

Step-by-step explanation:

14x+1+x=180

x=12

5(12)-7=53

Answer:

x = -1.5

Step-by-step explanation:

(0.5x+1.2)–(3.6–4.5x)=(4.8–0.3x)+(10.5x+0.6)

*I would first change any  minus signs that are outside of the parenthesis to a plus sign. This is optional, not necessary. *

0.5x + 1.2 + (-3.6) + 4.5x = 4.8–0.3x + 10.5x + 0.6

*Now combine like terms on each side. *

5x + (-2.4) = 10.2x + 5.4

*move all Xs on one side.*

-5.2x = 7.8

*Divide both sides by -5.2 to get X by itself."

x = -1.5

Step-by-step explanation: BRAINLESSSSSSSSSSSSSSSSSSS

Answer:

B. 400 square inches

Step-by-step explanation:

8x10=80

80x5=400

I did 80x5 since there are 5 pictures of her favorite band members.

So hence, the answer is 400 square inches

Thanks!

Mark me brainliest!

Answer :D

x = 52

Question explanation:

1. Add 28 to both sides:

[tex]5x - 28 = 232[/tex]

[tex]5x - 28 + 28 = 232 + 28[/tex]

2. Simplify:

[tex](adding, add again) = 5x =260[/tex]

3. Divide both sides by the same factor

[tex]5x = 260[/tex]

[tex]\frac{5x}{5} = \frac{260}{5}[/tex]

4. Cancel terms that are in both the numerator and denominator.

5. Divide the numbers.

x = 52

I hope this is correct - Answered by Lilo

Answer:

52

Step-by-step explanation:

Answer:

It might be 691200000000000

Step-by-step explanation:

Tell me if i am wrong.

Sorry if it is wrong and please correct me

Answer:

84 cm^2

Step-by-step explanation:

Answer: 16

Step-by-step explanation:

it’s 16 because there’s a median and a minimum value so 10 minus 2 is 8 x2 = 16

Answer:

I think the last part is there are 90 seats on the right side of the plane how many seats are on the left side of the plane.

Step-by-step explanation:

Answer:

If it needs to be from a certain set of questions can you post those but an example of a expression equal to 62 is

- 30+31

-32x2

-62x1

-0.62

-31/50

-62/100

Step-by-step explanation:

Answer:

22 kilometers

Step-by-step explanation

First we try 5.5 x 2 which equals 11 , now lets try 4  it will be easier because we already know what is half of 4 which is 11 , 5.5 x 4 = 22 which is like

11 x 2 = 22

Answer:

0 pounds

Step-by-step explanation:

Carrie buys 7/8 pound of red apples and 15/16 pound of green apples.

Which answer is the most accurate estimate for how many more pounds of green apples she buys than pounds of red apples?

Total number of green apples - Total number of red apples

Our expression: [tex]\frac{15}{16}-\frac{7}{8}[/tex]

[tex]\frac{15}{16}-\frac{7}{8} \\\\\frac{15}{16}-\frac{14}{16} \\\\\frac{1}{16}[/tex]

Since [tex]\frac{1}{16}[/tex] is not a full pound (1 pound), our answer will be 0 pounds.

Hope this helps!

Answer: no

Step-by-step explanation: no the ordered pair is not a solution since (3,24) when plugged into the equation gives you 24=18 which is not equal    

Answer: B

What we know:

How to solve:

We need to create a table for Donovan's height, compare it to Margaret's table, and then choose the appropriate statement. H will represent height, and a will represent age. B and c are constant values, and x is a coefficient to a-c

Simplifying equation

Set up equation                                                 H = 105 + 4.25(a - 5)

Distribute                                                            H = 105 + (4.25a - 21.25)

Age 5

Set up equation                                                 H = 105 + (4.25a - 21.25)

Substitute                                                           H = 105 + [(4.25*5) - 21.25]

Simplify                                                               H = 105 + (21.25 - 21.25)

Simplify                                                               H = 105

Age 6

Set up equation                                                  H = 105 + (4.25a - 21.25)

Substitute                                                            H = 105 + [(4.25*6) - 21.25]

Simplify                                                                H = 105 + (25.5 - 21.25 )

Subtract                                                               H = 105 + 4.25

Solve                                                                    H = 109.25

Age 7

Set up equation                                                  H = 105 + (4.25a - 21.25)

Substitute                                                            H = 105 + [(4.25*7) - 21.25]

Simplify                                                                H = 105 + (29.75 - 21.25)

Subtract                                                               H = 105 + 8.5

Solve                                                                    H = 113.5

Continue for the following ages (8-10)

1. Create a table for both sets of data. Example:

______________________________________________

Age                       |   5   |      6     |    7   |     8     |   9   |     10     |

Mar. height (cm)  | 101  |    105   |  109  |   113    |  117  |    121     |

Don. height (cm) | 105 | 109.25 | 113.5 | 117.75 | 122 | 126. 25 |

______________________________________________

2. Find which statement applies

    2a. Margaret did not grow faster than Donovan

    2b. Donovan did grow faster than Margaret

    2c. Margaret and Donovan did not grow at the same rate

    2d. There is enough data to draw a conclusion

Check:

We came to this conclusion by putting Donovan's data into a chart. We can check by writing an equation for Margaret's height. Then, use that equation with Donovan's to see the difference

Margaret's equation:

H = 4a + 81

Comparison (using ages 8 & 9):

8:

H= 4a + 81       |       H = 105 + (4.25a - 21.25)

H = (4*8) + 81   |       H = 105 + [(4.25*8) - 21.25)

H = 32 + 81      |       H = 105 + 12.75

H = 113             |       H = 117.75

9:

H = 117              |      H = 122

________________________

113 < 117.75

117 < 122

Because the statement still holds true, answer B is correct.

Answer:

72 degrees

Step-by-step explanation:

Because you want subtract both of the number from 180 because triangles angles always have to equal 180 degrees. I hope that helped! :)

Answer:

33.76

Step-by-step explanation:

5.3 x 2squared x 3.14

10.6 for the top 10.6 for the bottom and 12.56 for the area so you would have 33.76 if you added it all up!

Answer:

D. None.

Step-by-step explanation:

Say the obtuse angle is 100 degrees. Since the sum of all angles in a triangle cannot be bigger than 180, it's not possible because 195 (100+95) is greater than 180 degrees. Hope this helps.

Answer:

C). 10

Step-by-step explanation:

Using the Pythagorean theorem, a^2+b^2=c^2

We know the two sides (a and b) and are trying to find the hypotenuse (c).

Substitute the known values:

7^2+7^2=c^2

Simplify and solve:

49+49=c^2

98=c^2

sqrt(98)=c

c=9.899

Rounded to the nearest whole number would be 10

Let me know if you need any other clarification!

Answer:

4: 321.5cm²

5: Length of fencing = 62.46cm, Area of Yard: 232cm²

6: Area of 1 sign: 3950cm². Paint cans needed: 237

Step-by-step explanation:

4:

Area of Machine = Area of Square - 1/4 Area of Circle taken away

Area of Machine = (20x20) - 1/4(π10²)

Area of Machine = 400 - 1/4(3.14 x 100)

Area of Machine = 400 - 1/4(314)

Area of Machine = 400 - 78.5 = 321.5cm²

5: The perimeter of this figure is the length of fencing needed. The area of the yard can be figured out:

Perimeter: We're missing one side. So what we need to see here, is that the figure has a hidden triangle. Do you see it? its a missing right angle triangle, and we can use the Pythagorean theorem to find the hypotenuse, which is the missing side:

a² + b² = c²

16² + 7² = c²

256 + 49 = c²

305 = c²

c ≅ 17.46cm

now that we know the last dimension of the trapezoid, the Perimeter is known to be 11 + 16 + 18 + 17.46 = 62.46cm

Area = 1/2(b1+b2) x h

Area = 1/2(11 + 18) x 16

Area = 14.5 x 16 = 232cm²

6:

Area of 1 Sign = Area of rectangle + Area of Triangle

Area of 1 Sign = (90x30) + 1/2(50 x 50)

Area of 1 Sign = 2700 + 25x50

Area of 1 Sign = 2700 + 1250 = 3950cm²

.: area of 6 signs will be 6 x 3950 = 23,700cm²

If one can of paint covers 1 squared meter, then it covers 100 squares cm. So it will take 23700/100 = 237 paint cans to cover all 6 signs :)

Hope this helped!

Answer:

The explanation on how to do them is down below. If you have anymore questions pls feel free to ask

Step-by-step explanation:

So for number one you just need to state the sentence under the lines back wards but starting Lines m and n......

For number two name two angles that are inside the parallel lines and for three the opposite name two that are basically verticle outside of the parallel lines.

For number four they are across from each so they are verticle and since they are verticle they are concurrent so the m of 2 is 125.

In number 5,4 and 7 are corresponding so the are equal.

In number 6 the angles are alternate interior so they are congruent.

In number 7, the angles are corresponding so they are congruent.

In number 8, the angles are alternate exterior so they are congruent.

In number 9, the angles are are verticle so the are congruent.

In number 10, the answer is supplementary because on the top and bottom they add up to 180 degrees. And it part b 2 and 3 are adjacent and supplementary, so you subtract 119 from 180 and you get 61.

Answer:

it has a positive slope, it crosses the y axis at about (0,5), and it has a slope of about 2.

Step-by-step explanation:

mr clean

Answer:

The answer is D I think

2*9+4*7

Answer: The correct answer would be "2 x 9 + 4 x 7"

Step-by-step explanation:

The "sum" which is the plus sign in between 4 and 9 where you add the products

The sum of the "products of 2 and 9" would be 2 x 9

and product of four and seven would be 4 x 7

Answer:

new answer with estimate= 10 old answer= [tex]9.24[/tex]

Step-by-step explanation:

Use this method percent proportion

[tex]\frac{Percent}{100} = \frac{Part}{Whole}[/tex]  or   [tex]\frac{Percent}{100} = \frac{is}{of}[/tex]

Answer:

12% of 77

[tex]\frac{12}{100} = \frac{x}{77} = \frac{100x}{100} = \frac{924}{100} x = 9.24[/tex]

Steps:

1. Make a proportion with the method percent proportion.
2. After setting up numbers in proportion cross-multiply.

3. Make 100x because we don't know the value of x.

4. After multiplying 12 x 77 you should've gotten 924.

5. After cross-multiplying divide your new proportion.

6. [tex]x= 9.24[/tex]  estimate = 10

now I'm not sure if those number in your question is your new estimate answer but since 9.24 is close to 10 your answer will be 10

Have a great day hoped it helped :)

Answer:

56.25π ft²

Step-by-step explanation:

a = πr²

d = 15 ft

r = 15 ft/2 = 7.5 ft

a = π × (7.5 ft)²

a = 56.25π ft²

Answer:

56.25π ft²

Step-by-step explanation: this is the correct answer

Answer:

22ft^3

Step-by-step explanation:

Find the volume of one wooden cube block. Each of the edge length is 1/2

Volume of cube = l x w x h

l = 1/2      w = 1/2       h = 1/2

1/2 x 1/2 x 1/2 = 1/8

Then find the volume of the total box with how much total wooden blocks there are.

They are 176 wooden blocks.

Volume of one wooden cube block x the total number of wooden cube blocks = total volume of box.

So you do 1/8 x 176 and with that, the volume is 22ft^3.

Answer: t x 90

Step-by-step explanation: if 90 are in by 3:00 pm every hour 1.5/2 boxes are put in

Answer:

1, 4

Step-by-step explanation:

I did this in like year 8 and I cba to do all them but what u do is u go to the origin and count how many boxes there are to the point e.g A and the count them to the whatever the degree is e.g 90 but. 1, 4 would be the answer to the first one if its done how its meant to be but I don't know why they made it like that cause I did it differently. I'm just waff ling but yh.