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
OverLord2011 [107]
2 years ago
15

if the sum of a number and seven is doubled, the result is eight less than the number. Find the number

Mathematics
2 answers:
Kipish [7]2 years ago
5 0

Answer:

-22

Step-by-step explanation:

The result is eight less than the number means that

the result = number - 8

( x + 7 ) * 2 = x - 8

=> 2x + 14 = x - 8

=> x = -22

Alexeev081 [22]2 years ago
4 0

Answer: -18

Step-by-step explanation:

Let the number be represented by x.

If the sum of a number and seven is doubled, the result is four less than the number. The expression would be

2(x + 7) = x - 4

We would open the bracket on the left hand side of the equation by multiplying each term inside the bracket by 2. It becomes

2x + 14 = x - 4

Subtracting 14 and x from the left hand side and the right hand side of the equation, it becomes

2x + 14 - 14 - x =x - x - 4 - 14

x = - 18

You might be interested in
Donna Meagle notices that on 12 out of 14 days, her clumsy coworker Jerry Gergich spills his lunch on himself. She concludes tha
pantera1 [17]

Answer:

It is an example of an empirical probability.

Step-by-step explanation:

The empirical probability, also called experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment.

Theoretical probability is probability that is determined on the basis of reasoning.

It is evident that the probability in the question was arrived at after the outcome of 14 days of whether Jerry Gergich spilled his lunch on himself or not.

It's an actual result of an experiment, hence the 12/14 = 0.86 = 86% that he spills his lunch on himself tomorrow.

Hope this Helps!!!

6 0
3 years ago
A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the
galben [10]

Answer:

the area of a square piece of garden is 9409cm what is the premiter of a garden

5 0
2 years ago
Please please pleaseee
kaheart [24]

Answer:

a. C= 5/9(F-32)

Step-by-step explanation:

you have to subtract 32 from both sides so that leaves you with f-32=9/5c and so then you need to multipy each side my 5/9 and that leaves yoh with 5/9(f-32)=c

7 0
3 years ago
What is the answer for <br>11x-5(2x+1)=-2
Lerok [7]

2x^2 - 11x + 5 = (2x-1)(x-5)

8 0
3 years ago
Please help me answer these questions
Triss [41]
Discussed why 2 is the answer
5 0
3 years ago
Other questions:
  • What is 8 divided by 424
    13·2 answers
  • If a polygon is a square or a rectangle one may find the perimeter by
    14·1 answer
  • Write 3.617 correct to two decimal place
    7·1 answer
  • The Statue of Liberty the Approximately 305 feet tall. The angle of elevation of a ship to the top of the statue is 23.7 degrees
    8·1 answer
  • Ok I NEED help on 3 pls
    11·1 answer
  • If a parallelogram has a base of 9 units and a height of 2/3 units what is the area
    6·1 answer
  • Y + 2 = -3/4 ( x +1 ) in standard form
    6·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help me
    13·1 answer
  • Y=x+ - 4x3<br> Find the two stationary points<br> on the graph of y=x4 - 4x3
    11·1 answer
  • Write an equation in Slope Intercept form parallel to y = 2x + 3 and passing
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!