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
DaniilM [7]
3 years ago
5

If DE = 7x + 3 and EF = 9x - 19, then EF = ?

Mathematics
1 answer:
ANEK [815]3 years ago
6 0

Answer:

Step-by-step explanation:

7x + 3 = 9x - 19

-2x + 3 = -19

-2x = -22

x = 11

DE= 7(11) + 3 = 77 + 3 = 80

EF = 9(11) - 19 = 99 - 19 = 80

80 + 80 = 160 for DF

You might be interested in
Brenda can deliver 644 newspapers in 7 hour how many newspapers can brenda deliver in 9 hours
Naya [18.7K]
In 7 hours 644 newpapers 
in one hour it is 644/7= 92
in 9 hours-> 92x9 =828 newspapers
6 0
3 years ago
Luna is making a rope ladder. Each step of the ladder is 2 1/3 feet wide and uses an additional 1/2 foot on each end of the step
koban [17]

By taking the quotient between the total length and the length needed for each step, we conclude that Luna can make 9 steps.

<h3>How many steps can she make from the rope?</h3>

To find this, we need to take the quotient between the total length of the rope and the length needed for each step.

She has a total length of 30ft.

For each step she needs (2 + 1/3) ft plus (1/2) ft for each knot, and there are two knots, then each step needs: (2 + 1/3)ft + 2*(1/2)ft = (3 + 1/3) ft.

Then the number of steps that can be made is:

N = (30 ft)/(3 + 1/3) ft. = 9

She can make 9 steps or the lader.

If you want to learn more about quotients:

brainly.com/question/8952483

#SPJ1

6 0
2 years ago
What is the recursive rule for the sequence 1, −6, 36, −216, ... ? an=6⋅an−1 , a1=1 an=−6⋅an−1 , a1=1 an=−16⋅an−1 , a1=1 an=16⋅a
labwork [276]

Answer:

Option 2) a_n = -6(a_{n-1})            

Step-by-step explanation:

We are given the following sequence in the question:

1, -6, 36, -216, ...

We have to find the recursive relation for the sequence.

a_1 =1\\a_2 = -6 = -6(1) = -6(a_1)\\a_3 = 36 = -6(-6) = -6(a_2)\\a_4 = -216 = -6(36) = -6(a_3)

Thus, continuing in the following manner, we get,

a_n = -6(a_{n-1})

Thus, the recursive rule is given by

Option 2) a_n = -6(a_{n-1})

5 0
3 years ago
What is the exponent of the exponential expression?
mars1129 [50]
The answer is going to be 4. Hope that helped.
5 0
4 years ago
Slope intercept form <br> Through (2,8) and (0,-7)
denpristay [2]
Y2-y1
x2-x1

8-0
2-(-7)
5 0
3 years ago
Other questions:
  • What is the quotient of the given values to the correct level of precision?
    7·2 answers
  • This question please
    8·1 answer
  • A box of cereal is supposed to weigh 13.8 oz, but it's acceptable for the weight to vary as much as
    15·1 answer
  • Write 10 feet and 6 yards as a fraction in simplest form
    15·1 answer
  • Help me find the answer !!
    5·2 answers
  • Explain how you would round the numbers 33 and 89 to estimate their sum
    15·2 answers
  • Help mee quick and explain to me in an easy way as posible
    5·1 answer
  • Geometry Help!
    12·2 answers
  • #7 Write an equation in slope-intercept form to represent the line perpendicular to 3x + 2y = -7 passing through the point (1, 1
    10·1 answer
  • Find the value of x.<br> 2x420<br> 3x+10
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!