Brainlest and points need help with this question !

Answer:

Step-by-step explanation:

The two triangles are similar and therefore we can set up a proportion

9/(9 + 72) = (3x - 20)/(3x - 20 + 56)       Combine like terms on the right

9/(81) = (3x - 20)/(3x + 36)                      Cross multiply

9(3x + 36) = 81 (3x - 20)                         Remove the brackets.

27x + 324 +1620 = 243x                        Add 1620 to both sides

27x + 324 + 1620 = 243x                       Subtract 27x from both

1944 = 216x                                            divide both sides by 216

x = 9                                  

If you feel comfortable canceling the size of the numbers can be reduced.

9/81 = 1/9

1/9 = (3x - 20)/(3x + 36)

3x + 36 = 9(3x - 20)

3x + 36 = 27x - 180

36 + 180 = 24x

216 = 24x

216/24 = x

x = 9

There is another cancelation possible, but this is simple enough.

Answer:

You can also divide the number of cubic inches by 231 to get the volume in gallons. For example, let's calculate the volume of a rectangular tank that is 20″ long, 12″ wide, and 10″ high.

Step-by-step explanation:

Answer:

5k

Step-by-step explanation:

Step-by-step explanation:

it's an Equilateral triangle

the base angels are equal

A=100°

B=40°

C=40°

The required vertex angle will be  100° in the given figure.

An Isosceles Triangle is defined as a triangle with two sides of equal length is an isosceles triangle.

The triangle given in the figure is an Isosceles triangle.

It is given that side AB is equal to side AC.

So ∠B = ∠C = 40°

Now we know that the sum of angles of a triangle is equal to 180°. So here in this triangle ABC. These are the sum of these three angles will be equal to 180.

As per the given figure,

∠A + ∠B +∠C = 180°

∵ ∠B = ∠C = 40°

∠A + 40° +40° = 180°

∠A + 80° = 180°

∠A = 180° - 80°

∠A = 100°

Therefore, the required vertex angle will be  100° in the given figure.

Learn more about Isosceles Triangle here:

brainly.com/question/2456591

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Answer:

12

Step-by-step explanation:

51 ÷ 3 = 17

204 ÷ 17 = 12

hope this helps

okk

Step-by-step explanation:

hii

am

Jack

from

United State

America

Answer:

27 minutes.

Step-by-step explanation:

R = k/t

Substituting given info

600 = k/45

k = 45 * 600 = 27000

So the relation is S = 27000/t

So if R = 1000

1000 = 27000/t

t = 27000/ 1000

t = 27.

Answer: help you with what?

Step-by-step explanation:.-.

Haha. No need of money. But ask the question..

waiting..

Answer:

[tex]\approx 9.0\:\mathrm{units}[/tex]

Step-by-step explanation:

The magnitude of 3D vector [tex]\vec{v}[/tex] can be given by the following:

[tex]| \overline{v}| =\sqrt{{v_x}^2+{v_y}^2+{v_z}^2}[/tex]

Plugging in given values, we have:

[tex]| \overline{v}|=\sqrt{3^2+7.2^2+4.5^2},\\| \overline{v}| \approx \fbox{$9.0\:\mathrm{units}$}[/tex].

Answer:

Answer choice C is correct

Step-by-step explanation:

Answer: x = 59°, y = 114°.

Step-by-step explanation:

The sum of the opposite angles of a quadrilateral in a circle is 180°.

y = 180° - 121° = 59°

The two angles being adjacent makes a total angle of 180° on the straight line.

x = 180° - (180°-114°) = 180° - 66° = 114°

Answer:

A) the width is 89

B) if area is 7007, the length is 91

Step-by-step explanation:

Answer:

A: 89 m

B: 91 m

Step-by-step explanation:

A: P=2(L+W)

   P=2L+2W

P=2(99)+2W

2W=376-198=178

W=178/2=89m

B: A=L×W

   7007=L×77

L=7007/77=91

L=9l m

Answer:

3 cuh

Step-by-step explanation:

15/3 = 5 9/3= 3

Answer:

False

Step-by-step explanation:

Answer: 5(3n+4r)

Step-by-step explanation:You need to find the gcf/factor .So the gcf of 15 and 20 is 5.So know that you know the gcf ,you divide 15n by 5 which gives you 3n and divide 20r by5 which gives you 4r.Now the last thing you do is,take the GCF which is 5 and place a Parentheses and take 3n and 4r and add them together.

So you get 5(3n+4r) as your expression that  is equivalent to  15n + 20r .

Hope it helps . :)

Answer:

1

Step-by-step explanation:

Answer:

Allison tuvo el mejor récord

Step-by-step explanation:

Answer:

y=-1x+7

Step-by-step explanation:

Answer:

10%of 28=2.8

40%=2.8 ×4=11.2

5%(half of 10%)=1.4

then you add 40%and 5% which is 11.2+1.4=12.6

(on a calculator you can work percentage by doing 45 percentage button×the amount)

then you add 28 ounces(original)+(increase) which is 12.6=

40.6

Addie will use 40.6 ounces of chocolate for her recipe

Answer:

Step-by-step explanation:

10%of 28=2.8

40%=2.8 ×4=11.2

5%(half of 10%)=1.4

then you add 40%and 5% which is 11.2+1.4=12.6

(on a calculator you can work percentage by doing 45 percentage button×the amount)

then you add 28 ounces(original)+(increase) which is 12.6=

40.6

Addie will use 40.6 ounces of chocolate for her recipe

Answer:

33, 57

(not 100% sure this is correct)

Step-by-step explanation:

90= x +(24 +x)

(drag 90, plus the x's and drag the 24)

90 = 2x + 24

(Subtract 24 from 24 and 90 from 24)

66 = 2x

(Divide both by two)

33 = x

(now use x and plus it by 24)

24 + x = 57

Answer:

36

Step-by-step explanation:

4:5

16:n

16÷4=4

4×5=20

16:20

16+20=36

Answer:

36 fruits (I'm not sure, but I think it's correct)

Step-by-step explanation:

4 apples = 5 oranges

16 apples = ? oranges

4 x ? = 16

4 x 4 = 16

5 x 4 = 20

4 apples = 5 oranges

16 apples = 20 oranges

16 + 20 = 36 fruits

Answer:

true

Step-by-step explanation:

its TRUE :)

Answer:

False

Step-by-step explanation:

Take a=-1 and b=-1/7

-3+-15/7=-36/7 which is not divisible by 3. There are several other examples which I don't even need to prove

Answer: $59.5

170/100 * 85 = 144.5

144.5 - 85 = 59.5

If that is wrong my next guess is $144.50

Answer:

width=2 ft, length=(3x+4)ft

Area of Rectangle=width x length

                             =2ft . (3x+4)ft

                             =6x+8 ft sq

Area of Rectangle <56 ft sq

6x+8 ft sq <56 ft sq

6x  < 56 ft sq - 8 ft sq

6x <  48 ft sq                       Substeracting  8  on both sides

6x/6 < 48 ft sq/6                 Dividing by    6 on both sides  

x < 8 ft sq

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

Answer:

y = 3/4x + 1

Step-by-step explanation: