30 students : 2 teachers
please help this is due today

Answer:

cone volume=(1/3)hpir^2

d/2=r

d=12

d/2=12/2=6=r

V=120pi

120pi=(1/3)hpi6^2

120pi=(1/3)hpi36

120pi=12hpi

divide both sides by pi

120=12h

divide 12

10=h cm

if height and diameter is doubled aka height and radius are doubled

V=(1/3)(2h)pi(2r^2)

we want to see how it compares to V=(1/3)hpir^2

V=(1/3)(2h)pi(2r^2)

V=2(1/3)(h)pi4r^2

V=8((1/3)hpir^2)

the volume is increased by 8 times

blanks are

10

8

Step-by-step explanation:

Answer:

The height of the container is 10 centimeters. If its diameter and height were both doubled, the container's capacity would be 8 times its original capacity.

Hope this helps!

Step-by-step explanation:

Answer:

B.0.05n+0.25q=1.1

Step-by-step explanation:

5 cents as a decimal is 0.05 and n represents the nickles

25 cents as a decimal is 0.25 and q represents the quarters

Step-by-step explanation:

ok please before we can solve that you have to tell more about that thing before you can answer so I'm waiting for you to edit the text and said that thing very well so that we can understand and answer you correctly

Answer:

22 peaches

Step-by-step explanation:

I hope this help! :)

Answer:(_＼ヽ

 ＼＼ .Λ＿Λ.

  ＼(　ˇωˇ)　

   >　⌒ヽ

 　/   へ＼

  /  /　＼＼

  ﾚ　ノ   ヽ_つ

 /　/

 /　/|

　(　(ヽ

　|　|、＼

　| 丿 ＼ ⌒)

　| |  ) /

`ノ )   Lﾉ

(_／

Step-by-step explanation: I’m no good at math but good at dancing thx for the points!

Answer:

f(−10) =  ⇒ -19

f(2) =  ⇒ 4

f(−5) =  ⇒ -9

f(−1) =  ⇒ 1

f(8) =  ⇒ -5

Step-by-step explanation:

Answer:

-5

Step-by-step explanation:

y- 1/5x = 7

y= 1/5x +7

So, the slope of the line is 1/5

Perpendicular slopes are always the reciprocal with an inverse sign.

So, -5

Answer:

If he spends $52.50 on 5 bags, add $16.50 to $52.50 and get $69.

Answer:

B

Step-by-step explanation:

Y will change depending on what x equals, so y is kind of like the dependent variable that changes to the independent variable. That's proportional because x will always be some part of y.

Answer:

27 miles

Step-by-step explanation:

1cm is 6 miles,

4.5cm is ?miles

?=6*4.5/1=27

Answer:

Step-by-step explanation:

surface area of a square pyramid

= Area of base + 1/2 base perimeter * slant height

= (5 x 5) + (1/2 x (5*4) x 6)

= 25 + 60

= 85 ft²

Answer:

d

Step-by-step explanation:

the answer is 12% decrease in area

The required, percentage decrease in the area of the triangle is 12%. Option D is correct.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
Area of the triangle = 1/2bh

Now,
The length of the base of a triangle is increased by 10 percent and the height is decreased by 20 percent,
base = b + 0.1b = 1.1b
height = h - 0.2h = 0.8h

New area = 1/2[1.1b][0.8h] = 0.88 [1/2b/h]

Percentage decrease in area = [ 1/2bh - 0.88 [1/2b/h] / 1/2bh × 100%
                                             = 12%

Thus, the required, percentage decrease in the area of the triangle is 12%. Option D is correct.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ2

Answer:

here is a crown

Step-by-step explanation:

Answer:

Step-by-step explanation:

I think thats what you need hihihi

Answer:

he should be making $306.25

Step-by-step explanation:

what i did was multiply his $8.75 a dog by 5 then multiply it by the 7 weeks

Answer:

Chris's total earning will be: $306.25

Step-by-step explanation:

Given:

Total number of dogs = d = 5

Number of weeks = w = 7

Cost for walking per dog = c = $8.75

First of all, we will calculate his per week cost of walking 5 dogs

Per week cost of walking 5 dogs = d*c = 8.75*5 = $43.75

Then for the cost of 7 weeks, the amount of one week will be multiplied by 7

Total earning will be:

[tex]= 43.75*7 = 306.25[/tex]

Hence,

Chris's total earning will be: $306.25

Answer:

length = 20 feet

width = 7 feet

Step-by-step explanation:

This problem can be solved using a system of equations. Using the given information, you can formulate 2 equations:

l*w = 140

l = 2w + 6

In order to solve this system of equations, you can use the Substitution Property of equality to substitute the l in the first equation for (2w + 6) in order to find the width:

where l*w = 140 and l = 2w + 6,

1. (2w + 6)*w = 140

2. 2w^2 + 6w = 140

3. w^2 + 3w = 70

4. w^2 + 3w - 70 = 0

5. (w - 7) (w + 10) = 0

6. w = 7, -10

1. Substitution

2. Simplification

3. Divide both sides by 2

4. Subtract 70 from both sides

5. Factor the left side (find 2 numbers that add to 3 and multiply to -70)

6. Solve for w

The width must be 7 because a width of -10 is impossible. Now, you just need to plug that into the equation to solve for l:

l*w = 140

7l = 140

l = 20

That means that the length is 20 and the width is 7.

Answer:

HL

Step-by-step explanation:

1 =41

2 =85

3 =95

4 =85

5 =36

6 =49

7 =106

hope this helps

Answer:

43

Step-by-step explanation:

3x + 10 = 5x - 12

       10 = 2x - 12

      22 = 2x

        x = 11

check:

33 + 10 = 55 - 12

43 = 43

correct

x = 11 so bring this into 3x + 10

we get 43

Answer:

33,425,696

Step-by-step explanation:

Got it ...........

Answer:

The answer is B. But honestly tempeture rises with every layer.

Answer:

4.72 in.

Step-by-step explanation:

BC = 3.1 in.

CD = 7.2 in.

Altitude of right triangle altitude is given as [tex] h = \sqrt{xy} [/tex], where:

h = altitude

x = 3.1 in.

y = 7.2 in.

Plug in the values into the formula

[tex] h = \sqrt{3.1*7.2} [/tex]

[tex] h = \sqrt{22.32} [/tex]

[tex] h = 4.72 in. [/tex] (nearest hundred)

Answer:

4.72

Step-by-step explanation:

I took the test.

Answer:

C

Step-by-step explanation:

each marker is placed at 5 gallons up, and one minute over. (up 5, over one AKA 5 over one) 5/1. Hope this helped :)

Answer:

the third one is correct

explanation:

the second dot on the graph shows that it is ten gallons of water for 2 minutes, making the fraction 10/2. That simplifies to 5/1, which is the third answer.

hope this helps :)

ps: pls consider brainliest im trying to rank up

Answer:

x=8

Step-by-step explanation:

7x-6+5x+90=180

12x+84=180

12x=180-84

12x=96

x=96/12

x=8

Answer:

5...?

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

The answer is 7 because a 2 reversed looks like a 5 and 2+5=7

Answer:

the GCF is 4

Step-by-step explanation:

GCF is the greatest factor that acers in both

80 = 10 x 8 or 20 x 4

28 = 7 x 4

Answer:

Hey buddy, here is your answer. Hope it helps u

Step-by-step explanation:

The answer is b-10. The area of rhombus is 1/2*d1*d2. So 1/2*4*5=10. D stands for diameter.

Answer:10

Step-by-step explanation:

Answer:

(4,5)

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Answer:

thank you i will make sure to<3

Answer:

Your a legend

Have a nice day!