if de = 6x , EF =4x, and df =10 what is DE

Answers

Answer 1

Answer: 6

Step-by-step explanation:

Given DE, EF and DF, we know that DE and EF make up DF. We add DE and EF and set it equal to DF.

6x+4x=10                 [add]

10x=10                      [divide both sides by 10]

x=1

Now that we know x=1, we can plug that into DE.

6(1)=6

Now, we know that DE is 6.


Related Questions

How do you solve: -16(2r-7)=4(5-3r) Thank you for answering!

Answers

Exact Form - 23/5

Decimal Form - 4.6

Hope This Help's

The formula for the volume of a cylinder is v=piR^2h where v is the volume, R is the radius, and h is the height solve the formula for R and then use it to answer the question.

A cylindrical bucket contains 615 cubic inches of water. The height of the water is 4 inches

What is the radius of the bucket, to the nearest whole number? Use 3.14 for pi

Answers

Answer: Its 6

Step-by-step explanation: The answer is 5.99894 then you round it to 6.

The radius of the bucket, to the nearest whole number, is 7 inches.

So, option A. is correct.

Here, we have,

To solve the formula v = πR²h for R, we can rearrange the equation as follows:

v = πR²h

R² = v / (πh)

R = √(v / (πh))

Given that the volume v is 615 cubic inches and the height h is 4 inches, we can substitute these values into the equation:

R = √(615 / (3.14 * 4))

Calculating the value, we have:

R ≈ √(48.98)

R ≈ 7

Therefore, the radius of the bucket, to the nearest whole number, is 7 inches.

Hence, So, option A. is correct.

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select all the statements that are true

Answers

Answer:

π is irrational because π is a repeating decimal. 7 is irrational because 7 is not a perfect square. 7.1234... is irrational because it is non-terminating, non-repeating decimal. ×7 is rational because 7 is not a perfect square. ×π is irrational because π is not a repeating decimal. ×

NOTE: × means false.

means true.

a- 2.25
b-6.75
c-10
d-12

Answers

it would be b - 6.75

Answer:

B. 6.75 in

Step-by-step explanation:

ABCDEF ~ RSTUVQ

➡️ [tex] \frac{A \: F}{QR} = \frac{AB}{RS} [/tex]

➡️ [tex] \frac{9}{4} = \frac{x}{3} [/tex]

➡️ [tex]x = \frac{27}{4} [/tex]

➡️ [tex] = 6.75 \: in[/tex]

what is X 2x + 3 =15

Answers

2x + 3 =15

the answer is x=6 !!

Answer:

x = 6

Step-by-step explanation:

2x + 3 = 15

2x = 15 - 3

2x = 12

2x/2 = 12/2

x = 6

The elevation of an airplane changes by-420 feet in 12 seconds. What is the change in the airplane's elevation each second?

Answers

Answer:

-35 feet each second

Step-by-step explanation:

Divide -420 by 12:

-420/12

= -35

So, the change in the plane' elevation is -35 feet each second

Answer:

-35 feet per second

-420/12 = -35

HELPPP PLZZZZ ASAPPPPPP

Answers

Answer:

B. [tex]d = \sqrt{x^2 +y^2}[/tex]

Step-by-step explanation:

All of the following equations have the same solution except _____.


-10 = -3 m + 2
2 - 3 m = -10
-3 m + 2 = -10
3 m + 2 = -10

Answers

this is if you need it written out, but the answer would be the last one 3m+2=-10 doesn’t have the same solution as the rest

Answer:

All of the following equations have the same solution except 3m + 2 = -10.

Step-by-step explanation:

I use 1.48 inches of ribbon to make 4 necklaces. How much ribbon did I use for each necklace?

Answers

0.37 inches on each necklace or 37/100.

You just need to do 1.48 divided by 4.

Hope this helps !!!
You should go to sleep soon you have school tomorrow!!
Also make sure you ate today !

-15=2t-11 does any one know it please

Answers

Add 11 to both sides:

-4=-2t

divide 2 by both sides

2=t

Hope it helps! Comment if you have any questions!

Answer:

t = -2

Step-by-step explanation:

Move all terms that don't contain t to the right side and solve

Simplifying expressions, I just need questions 8-18... help me please

Answers

1.) 3x-11
2.) -18x-35
3.) 13x+8
4.) -28x-16
5.) -7x+23
6.) -2x-57
Here are the first top rows

Mrs. King is buying a solar cover for her rectangular
swimming pool. The cover will float on the surface of the
pool and has the same dimensions as the pool. The pool is
twice as long as it is wide. Its width is 14 feet. What is the
area of the solar cover?
А
392 ft?
B
352 ft?
с
84 ft?
98 ft

Answers

Answer:

Option A

Step-by-step explanation:

If the length is twice as long as the width (14 ft), that makes it 28 ft. (14 x 2=28)

14 ft x 28 ft = 392 square feet

Therefore, the area of the solar cover is [tex]392[/tex] square feet. i.e., option (A) is the correct answer.

What is the simplification?

Simplification is reducing the expression/fraction/problem in a simpler form. It makes the problem easy with calculations and solving.

Here given that,

Mrs. King is buying a solar cover for her rectangular swimming pool. The cover will float on the surface of the pool and has the same dimensions as the pool.

The pool is twice as long as it is wide. Its width is 14 feet.

If the length is twice as long as the width [tex]14ft[/tex], that makes it [tex]28 ft[/tex].

Then the [tex](14 (2)=28)[/tex].

So,

[tex]14[/tex] ft x [tex]28[/tex] ft = [tex]392[/tex] square feet

Hence, the area of the solar cover is [tex]392[/tex] square feet. i.e., option (A) is the correct answer.

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what is the slope of the line that passes through the points (5,10) and (11,-12)

Answers

Answer:m=-11/3

Step-by-step explanation:

Answer:

-11/3

Step-by-step explanation:

We have two points so we can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

   = ( -12-10)/(11 -5)

   = -22/6

    = -11/3

A pilot needs to know the maximum height an aircraft can fly at. The cabin has
been tested and is safe to a height of 15679 m.
Round this height appropriately: to a whole number of kilometers and to a whole 100m. Please help.

Answers

It is 16 kilometres

1. A point is named or labeled using? 2. Three distinct points are collinear if ? 3. Three distinct points are coplanar if ? PLZ HELP

Answers

Answer:

1) A point P is named or labeled by using a coordinate pair, where the regular notation is:

P = (x, y).

Where x and y are the horizontal and vertical components.

2) Three distinct points are collinear if exists a line that passes through the 3 points.

3) Three distinct points are complanar if they are not collinear, this means that:

We can have two colinear points (so one line connects them) and another point outside that line.

Then the set of 3 points is coplanar.

In a survey, 80 students were asked to name their favorite subject. Thirty students said that History was their favorite. What percent of the students surveyed said that History was their favorite subject?

Answers

I misread the question so I am removing my answer.

Answer:

I think the answer is 20 percent

Step-by-step explanation:

if 80 is 100% than you have to make 30 a %

The measure of G is six more than twice the measure of H. If G and H are supplementary angles, find the measure of H pls I need help pls

Answers

Answer:

G=2H+6. -(1)

Also, G and H are supplementary angles which mean their sum would be180.

G+H=180

G=180-H. -(2)

From (1)&(2)

2H+6=180-H

3H=174

H=58

Hope it helps :-)

what is (9w)^2 (in other words, to the power of two.)

Answers

Answer:

9w to the power of is 81w

Step-by-step explanation:

What are you looking for for the answer?

whats the answer
f(x)= -2 (1/2) +1

Answers

The answer is 0

-2(1/2) =-1
1-1=0

If it is 9 AM, what time was it 57 hours ago.

Answers

Answer:

1. am

Step-by-step explanation:

work is shown and pit

How can unit rates and proportional reasoning be used to solve problems?

Answers

This is what I got I hope it helps

KN bisects ZJKM. If mZNKJ = 7x-9 and
m2JKM = x + 3, find m2JKN.

Answers

Answer:

Step-by-step explanation:

7x - 9 = x + 3

6x - 9 = 3

6x = 12

x = 2

7(2) - 9 + 2 + 3

14 - 9 + 5

5 + 5 = 10

2. -5x – y = 7
I need help to solve for y

Answers

Answer:

y= -7 - 5x

Step-by-step explanation:

Move all of the terms that dont contain y to the right side and then solve it.

Hope this helps.

The value of the given equation in the form of y is y= -7 - 5x.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given equation is -5x – y = 7. The value of the expression for the value of y will be calculated as below:-

-5x – y = 7

-y = 7 + 5x

y = -7 - 5x

Therefore, the value of the given equation in the form of y is y= -7 - 5x.

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Multiply.

(2.1×102)×(3.5×105)

Answers

Answer:

78,718.5

Step-by-step explanation:

2.1*102=214.2

3.5*105=367.5

214.2*367.5=78,718.5

solve for x: |12x + 12|=18

Answers

Answer:

x = 1/2 or x = -5/2

Step-by-step explanation:

Solve for x over the real numbers:

abs(12 x + 12) = 18

Hint: | Eliminate the absolute value.

Split the equation into two possible cases:

12 x + 12 = 18 or 12 x + 12 = -18

Hint: | Look at the first equation: Isolate terms with x to the left hand side.

Subtract 12 from both sides:

12 x = 6 or 12 x + 12 = -18

Hint: | Solve for x.

Divide both sides by 12:

x = 1/2 or 12 x + 12 = -18

Hint: | Look at the second equation: Isolate terms with x to the left hand side.

Subtract 12 from both sides:

x = 1/2 or 12 x = -30

Hint: | Solve for x.

Divide both sides by 12:

Answer: x = 1/2 or x = -5/2

Does someone know how to do this?
p(x)= -12x -36; -3

Answers

Answer:

p(- 3) = 0

Step-by-step explanation:

Substitute x = - 3 into p(x) , that is

p(- 3) = - 12(- 3) - 36 = 36 - 36 = 0

yw + yq = r
What is y equal to?

Answers

Answer:[tex]y=\frac{x}{w+q}[/tex]

Step-by-step explanation:

An object is moving at a speed of 9 centimeters every 5.5 minutes. Express this speed in miles per day. Round your answer to the nearest hundredth.

Answers

An object is moving at 9 centimeters every 5.5 minutes have a speed of 0.01 mile per day.

Speed is the ratio of distance travelled to time taken. Speed is given by:

Speed = distance/time

Given that the 9 cm is covered every 5.5 minutes, hence:

1 mile = 160934 cm;

9 cm = 9 * 1/160934 = 9/160934 mile

1 day = 1440 minutes

5.5 minute = 5.5 *  1/1440 = 5.5/1440 day

Hence:

Speed = distance/time

Speed = (9/160934 mile)/(5.5/1440 day)

Speed = 0.01 mile per day

An object is moving at 9 centimeters every 5.5 minutes have a speed of 0.01 mile per day.

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Solve for y .
K=5yz
help

Answers

Answer: y=K/5z

Step-by-step explanation:

To solve for y, you need to use algebraic properties to isolate y.

K=5yz            [divide both sides by 5z]

K/5z=y

y=K/5z

12. What property is preserved in a dilation?

Answers

Answer:

please mark brainliest ! It means that dilations map angles to angles, and the dilation preserves the measures of the angles. dilations. Dilations map lines to lines, rays to rays, and segments to segments.

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