Please give me the correct answer.Only answer if you're very good at math.Please don't put a link to a website.​

Answer:

polygon B = 20 meters

Step-by-step explanation:

polygon A : polygon B

3 : 4

15 : x

first take 15 and divide by 3, this would tell us how much it went up by:

15 ÷ 3 = 5

next, take 4 and multiply it by 5:

4 x 5 = 20

this means that polygon B is 20 meters

Answer:

n - 21

Step-by-step explanation:

"difference" implies subtraction here.  

The difference between a number and 21 is n - 21.

Answer:

35 years

Step-by-step explanation:

They become a scientist,  be even smarter.  They look up lots of stuff and soalk in the knowledge. Then get older and forget what they learned. Pls mark the brainliest

Answer:

The answer is 9

Step-by-step explanation:

Given:

The two linear equations are:

[tex]x+y=5[/tex]

[tex]y-2x=-4[/tex]

To find:

Whether the ordered pair (3,2) is a solution of the given system of liner equations.

Solution:

We have,

[tex]x+y=5[/tex]          ...(i)

[tex]y-2x=-4[/tex]        ...(ii)

If both the equations are satisfy by the point (3,2), then this point is the solution of the given system of equations.

Putting [tex]x=3,y=2[/tex] in (i), we get

[tex]3+2=5[/tex]

[tex]5=5[/tex]

This statement is true. It means the point (3,2) satisfies the equation (i).

Putting [tex]x=3,y=2[/tex] in (ii), we get

[tex]2-2(3)=-4[/tex]

[tex]2-6=-4[/tex]

[tex]-4=-4[/tex]

This statement is true. It means the point (3,2) satisfies the equation (ii).

Since both the equations are satisfy by the point (3,2), therefore the point (3,2) is the solution of the given system of equations.

Answer:

x=10

Step-by-step explanation:

work in the photo

Answer:

x=10

Step-by-step explanation:

Subtract 3 from both sides

2x=23-3

Simplify 23-3 to 20

2x=20

Divide both sides by 2  

x=  2 0/2

Simplify 20/2 to 10

x=10

​  

Answer:

I believe that would be 12 because

Step-by-step explanation:

if 2x - 7y = 10

then if you were to add two to that it would be 12

Answer:

The number is 3.

Step-by-step explanation:

5x - 4 = 11

5x = 15

x = 3

Answer:

i dont know how to make diagram for it but

Step-by-step explanation:

shawn donated 7 books

Answer:

The answer iz 32 walkers.

Step-by-step explanation:

the equation would be 232+24x

The Girl Guides would need 32 walkers to reach their goal

232+24×32=1000

Answer:

*screenshot

Step-by-step explanation:

I tried my best drawing digitally

24*36*90=77760 inches, but put into feet that would be 6480 ft cubed.

Answer:

4x + 3y − 18

Step-by-step explanation:

Simply 4x - 18 + 3y = 4x + 3y − 18

Answer:

1.1.1- Michael has 200 lovebirds in total

1.1.2- There are 40 birds in each cage

1.1.3- 120/80 = 3/2

Step-by-step explanation:

120+80=200

200÷5=40

120÷40=3, 80÷40=2

Step-by-step explanation:

The picture below shows the food that Michael gives to his lovebirds. He gives Each cage every morning

Slime was a toy product manufactured by Mattel, sold in a plastic trash can and introduced in February 1976. It consisted of a non-toxic viscous, squishy and oozy green or other color material made primarily from guar gum.

Answer:

Kate is correct

Step-by-step explanation:

Hope i did that in time

Answer:

Tim is correct

Step-by-step explanation:

2 1/2 or 2.5 is equivalent to 10 cups

1qrt = 4 cups

Answer: 52 minutes

Change denomniators by multiplying by 5 and 3

1/5 x 3 = 3/15

2/3 x 5 = 10/15

Add

3/15 + 10/15 = 13/15

Multiply by 4 to get minutes

13/15 x 4 = 52/60

Answer:

52 minutes

Step-by-step explanation:

Chemistry hw: 1/5 x 60 min＝12 min

Math assignment: 2/3 x 60 min ＝ 40 min

Total time: 12 min + 40 min ＝ 52 min

Answer:

2539.45

Step-by-step explanation:

36/2=18 18=radius

20=height

A=πr(r+h2+r2)=

π·18·(18+202+182)≈

2539.44505

Answer:-2(2x + 5)2 i think

Step-by-step explanation:(8+4x)/4x= 4(2 + x)/4x= (2 + x)/x

Answer:

30° =  m∠GFH

Step-by-step explanation:

Since ∠EFH and ∠GFH are complementary, the sum of their measures i 90.

Let x = m∠GFH

2x = m∠EFH

m∠GFH + m∠EFH = 90

x + 2x = 90

3x = 90

x = 30° =  m∠GFH

Answer: 30

Step-by-step explanation: qu i z i zz

Answer:

That is true!

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Answer:

x is greater than or equal to 4

Step-by-step explanation:

divide both sides by two, treating it as an equation

so x is greater than or equal to 4

For D:

A triangle always has 180 degrees total. No more, no less. Seeing as though all the sides and angles are the same length, we can just divide 180 by 3, giving us 60. x = 60 degrees.

For E:

We can see there is a 90 degree symbol that surmises both angles. We know the lower angle is 30 degrees, so m must equal 60 degrees.

For G:

Same concept as D, except we gotta do a bit of math. A triangle always has 180 degrees, So we add 50 and 55 together and get 105. Subtract 105 from 180 and we get 75. Therefore, your angle is 75 degrees.

For H:

The 75 degree angle and m are parallel, with the same line passing through it, meaning that m is identical to the other angle. m = 75.

Answer:

d) x = 60

e) m = 60

g) q = 75

h) m = 75

Step-by-step explanation:

d) This image is that of an equilateral triangle, or a triangle whose sides are all equal (also known as a regular triangle). One property of an equilateral triangle is that all of its angles are also equal. Because the angles of a triangle add up to 180° (Triangle Sum Theorem), each angle would be 180/3°, or 60°, so x = 60.

e) This problem shows two complementary angles. Complementary angles are two angles that add up to 90°. Because one of the angles is given, you can find the other by subtracting the given one from 90°:

   m = 90 - 30

   m = 60

g) This is an image of a triangle with two given angles and the missing one is the third angle, q. You can solve for q using the Triangle Sum Theorem, which states that the three interior angles of a triangle add to 180°:

   50 + 55 + q = 180

   105 + q = 180

   q = 75

h) This image shows two parallel lines cut by a transversal. You can find m using the Corresponding Angles Theorem, which states that if parallel lines are cut by a transversal, the corresponding angles will be congruent. Because the lines are parallel, you know that m = 75 since the 75° angle is its corresponding angle.

Answer:

[tex]762^{8}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex] , then

[tex]762^{4}[/tex] × [tex]762^{4}[/tex]

= [tex]762^{(4+4)}[/tex]

= [tex]762^{8}[/tex]

Answer:

150 sq.cm

Step-by-step explanation:

Surface area = (5 cm x 5 cm) x 6 faces

Surface area = 25 sq.cm x 6 faces

Surface area = 150 sq.cm

Hope that helps!

Answer:

150

Step-by-step explanation:

Answer:

x=88

Explanation:

x+6+x-2=180

2x+4=180

2x=180-4

2x=176

*divivd both sides*

x=88

Answer:

x = 88

A = 94°

B = 102°

C = 86°

D  = 78°

Step-by-step explanation:

We find the angle measurements by finding x first.

what we first do in this equation x+6+x-2=180 is combine like terms

this would equal

2x+4=180

we want x by itself so we subtract 4 from both sides

this would equal

2x=176

x is still not by itself so now we divide 2 by both sides

this would equal

x = 88

Now we just plug in our answers in to the angles meaning

we replace everything that is x in the quadrilateral with 88

Now that we found all the sides with equations there is still one angle that is undefined

We figure this out by subtracting all the angles with 360.

this is because all the angles degrees added in a quadrilateral equals 360. so 360-258=102

so the angle measurement of angle B is 102

Answer:

20

Step-by-step explanation:

12 = 6/10 x

120 = 6x

x = 20

Answer:

40%

Step-by-step explanation:

10/25 = 0.4

0.4 into a percentage is 40%

Answer:

40%

Step-by-step explanation:

25/10 = 2/5 = .4 or 40%