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
Romashka [77]
2 years ago
13

Plz help!! If DF = 170, find the value of x. Then find DE and EF.

Mathematics
2 answers:
Firlakuza [10]2 years ago
8 0

Answer

  • DE= 3x + 20 = 86
  • EF= 2x + 40=84

Step-by-step explanation:

DE: 3x + 20

EF: 2x + 40

DE+ EF= DF

3x+20 +2x + 40 = 170

5x + 60 =170

5x= 110

x= 22

  • DE= 3x + 20 = 86
  • EF= 2x + 40=84
Snowcat [4.5K]2 years ago
6 0

Answer:

x = 22

DE = 86

EF = 84

Step-by-step explanation:

DF=DE+EF

170= (3x +20) + ( 2x+40)

170 = 5x + 60

5x = 170 - 60

5x = 110

x = 110 / 5

x = 22

DE =3x + 20 = 3(22) + 20 = 66 + 20 = 86

EF= 2x + 40 = 2(22) + 40 = 44 + 40 = 84

I hope I helped you^_^

You might be interested in
What is the opposite of -85.23
Ivanshal [37]
85.23 will be the answer
4 0
3 years ago
Read 2 more answers
Which of the following arguments correctly justifies the second step of the flow proof of the triangle angle sum theorem below
pochemuha
We need to see the second step of the proof, so we know what needs to be justified. It would also be nice to see the list of answer choices. I'll never understand how someone who can't answer the question and has to ask someone else can then go ahead and decide that the person helping him only needs to see parts of the question.
8 0
3 years ago
Evaluate the expression when a = 3,6 = 2 and C=-1.<br> (a + b)(6-0)
ivann1987 [24]
3+2 times (6) equals 48
3 0
3 years ago
Pls help will give brianlist
bazaltina [42]

Answer:

Not equivalent

Step-by-step explanation:

5:3

15:12 simplified = 5:4

3 0
2 years ago
Read 2 more answers
3x - 2y= 5, 4x + 3y= 1​
Elena-2011 [213]

Answer:

x=17 and y=23 DONT SUE ME IF I GET THIS WRONG PLZZ ;-;

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Help!! Which operation should be used to solve <br> X/3= 15? <br> A= ÷3<br> B= -3<br> C=+3<br> D=x3
    10·1 answer
  • I need help with 19, 20, and 21! please and thank you!
    6·1 answer
  • Solve for x: 3x = 54
    7·2 answers
  • 472 to the nearsest 100
    11·2 answers
  • PLEASE HELP...
    13·1 answer
  • If an interior angle of a regular polygon measures 144° how many sides does the polygon have
    13·1 answer
  • allenbrights electronics is having a 25% off sale. If the ratio is sale priced at $135 what is the regular price?
    10·1 answer
  • Can someone answer these two I am not understanding my math<br><br>Algebra 1
    11·2 answers
  • There are 8 midsize cars and 15 compact cars and 6 will be selected. What is the probability of selecting all midsize cars?
    14·1 answer
  • Tracy ran a lap around the school track in 74.2 seconds. Malcolm ran a lap in 65.92 seconds. Estimate the difference in the time
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!