1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
algol [13]
1 year ago
8

If DF=78, DE=5x-9, and EF=2x+10, find DE.

Mathematics
1 answer:
Kazeer [188]1 year ago
3 0

Given that E is a point between Point D and F, the numerical value of segment DE is 46.

<h3>What is the numerical value of DE?</h3>

Given the data in the question;

  • E is a point between point D and F.
  • Segment DF = 78
  • Segment DE = 5x - 9
  • Segment EF = 2x + 10
  • Numerical value of DE = ?

Since E is a point between point D and F.

Segment DF = Segment DE + Segment EF

78 = 5x - 9 + 2x + 10

78 = 7x + 1

7x = 78 - 1

7x = 77

x = 77/7

x = 11

Hence,

Segment DE = 5x - 9

Segment DE = 5(11) - 9

Segment DE = 55 - 9

Segment DE = 46

Given that E is a point between Point D and F, the numerical value of segment DE is 46.

Learn more about equations here: brainly.com/question/14686792

#SPJ1

You might be interested in
Simplify 3(x-y)+3x+2<br>​
Alla [95]

Answer:

6x-3y+2

Step-by-step explanation:

I AM BIG BRAIN

3 0
2 years ago
Given the figure below, find the values of x and z.
charle [14.2K]

Answer:

I think z = 89 and I don’t know x

8 0
3 years ago
Please help with this it’s 11 points
Evgesh-ka [11]

Answer:

Line means going on upto point but line segment means limited line

8 0
3 years ago
Read 2 more answers
Help me :,)
IrinaK [193]

Answer:

The rule of the arithmetic sequence is 13 - 2n

The 30th term is -47

Step-by-step explanation:

∵ f(n) = 11 and g(n) = -2(n - 1) = -2n + 2

∴ f(n) + g(n) = 11 + -2n + 2 = 13 - 2n

Use n = 1 , 2 , 3 , 4 to check the type of the sequence

∵ n = 1 ⇒ 13 - 2(1) = 11

∵ n = 2 ⇒ 13 - 2(2) = 13 - 4 = 9

∵ n = 3 ⇒ 13 - 2(3) = 13 - 6 = 7

∵ n = 4 ⇒ 13 - 2(4) = 13 - 8 = 5

∵ 11 , 9 , 7 , 5 is an arithmetic sequence with difference -2

∴ The rule of the arithmetic sequence is 13 - 2n

∴ The 30th term = 13 - 2(30) = -47

5 0
3 years ago
Read 2 more answers
Jack reads his book for 8 minutes before school and 10 minutes after school. He attends school Monday through Friday. Which equa
sweet-ann [11.9K]

Answer:

<h2>90 min or 1hr 30 mins</h2>

Step-by-step explanation:

Even though the options to choose from are not given in this question we can try and lay our hand on the most likely equation for the number of minutes Jack reads his book.

firstly on a daily Jack reads a total of = 8+10 = 18 mins

He attends school from Mon- fri = 5 days

Now on a weekly basis jack reads = 5*18

in other words, the equation is simply the number of days times the time spent to read his book per day

hence this is  = 90 min or 1hr 30 mins

5 0
3 years ago
Other questions:
  • Which equation could be used to solve for the measure of angle P?
    11·2 answers
  • I need help my question is 4/7 divided by -13/5
    8·2 answers
  • Is 5 yards larger then 192 inches
    10·1 answer
  • Is the number rational or irrational
    14·1 answer
  • A company is trying to determine how many Valentine’s Day cards to produce. The cost of printing x cards is $2 million +0.70x. F
    5·1 answer
  • Each day after school, Chelsey runs 2.8 miles farther than Kyle.
    14·2 answers
  • A pentagon is shown. the pentagon is translated 5 units to the left and then reflected over the x-axis. Use the Connect Line to
    7·1 answer
  • NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!! The equal sections of a spinner have one of the following letters: A, B, A, C, B. Predict
    15·2 answers
  • Evaluate:<br> -22+(-45) = [?]
    8·2 answers
  • Write an equation for the graph.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!