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
EastWind [94]
3 years ago
8

Point D is between Points E and F. DE = 3x + 9, DF = 12x - 1 and EF = 38. Find DE and DF.

Mathematics
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

DE = 15

DF = 23

Step-by-step explanation:

E___D___F

EF = DE + DF

38 = (3x +9) + (12x-1)

38 = 15x + 8

15x = 38 - 8

15x = 30

x = 30/15

x = 2

DE = 3x + 9 = 3(2) + 9 = 6 + 9 = 15

DF = 12x - 1 = 12(2) - 1 = 24 - 1 = 23

I hope I helped you^_^

You might be interested in
I do need help please. Just number 14 :)
Ainat [17]
The difference between the coat cost for Delaware vs Fairfield is $0.60

Explanation:
For Delaware: 80 × .0725 = $5.80
80+5.80= $85.80

For Fairfield: 80 × .065 = $5.20
80+5.20=$85.20

85.80-85.20=0.60
7 0
3 years ago
Read 2 more answers
HELP HELP HELP 6 = x/8<br><br> The question is what is "x"?
german

Answer:

x= 48

Step-by-step explanation:

Multiply 8 by 6 to get x by itself and you get your answer.

5 0
3 years ago
Read 2 more answers
Must show all work for 15 points
andreyandreev [35.5K]

Answer:

Hey there!

a)

10x-1=4x+2

6x-1=2

6x=3

x=1/2 cm.

10x-1=4 cm.

So the width of the rectangle is 10/4, or 2.5 cm.

b)

l=3w

2l+2w=24

2(3w)+2w=24

6w+2w=24

8w=24

w=3

l=9

The are is 27 units squared.

Let me know if this helps :)

3 0
3 years ago
Evaluate 150 - ( 2 +x)^ 3 when x - 2
AveGali [126]

Answer:

86

Step-by-step explanation:

(2+2=4) 4 to the 3rd power is 64. 150 minus 64 is 86

3 0
3 years ago
X/3=-3 can someone help me
laiz [17]

Answer:

x = - 9

Step-by-step explanation:

Given

\frac{x}{3} = - 3 ( multiply both sides by 3 to clear the fraction )

x = - 9

7 0
3 years ago
Other questions:
  • For every of an hour that the turtle is crawling, he can travel of a mile. At what unit rate is the turtle crawling?
    7·1 answer
  • Your fish tank holds 3535 liters of water. How much is that in milliliters?
    13·2 answers
  • 2/3x=−1/3x−4<br><br> (they are not being divided)
    14·1 answer
  • Write three functions. In the first function, y should vary directly with x. In the second function, y should vary inversely wit
    14·2 answers
  • 30 is what percent of 60
    14·2 answers
  • 4.2 on a number line
    14·1 answer
  • Factor the following expression completely:
    9·2 answers
  • [8-(-12)]÷(2x-2)-(-8)
    12·1 answer
  • How Many texts?please help.
    13·2 answers
  • Help on this question…
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!