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
tamaranim1 [39]
4 years ago
10

Find two numbers, if … b Their sum is −7 and their difference is 14

Mathematics
1 answer:
olga2289 [7]4 years ago
6 0

The numbers are 3.5 and -10.5

Step-by-step explanation:

  • Step 1: Sum of two numbers = -7. Let one number be x. Then, the other number = -7 - x. Difference = 14

⇒ x - (-7 - x) = 14

⇒ x + 7 + x = 14

⇒ 2x = 7

∴ x = 7/2 = 3.5

-7 - x = -7 - 3.5 = -10.5

You might be interested in
Please solve it .........​
VLD [36.1K]

Answer:

2

Step-by-step explanation:

We must first solve the first equation to solve the second question. If we make up an answer for each variable in the first equation, it will make it easier to solve the next. Now lets say that each of the fractions will be equal to 1/3. We can then find out that x=2, y=4, and z=4012. We then have to factor the second equation's fractions. we can factor out x, y, and z out of each fraction respectively. The equations become the same as the first set, but x, y, and z instead of 1, 2 and 2006. because we know that x=2, y=4, and z=4012, we can simplify each fraction to become 2/3, and add these fractions up to equal 2.

4 0
3 years ago
In a certain city, 80 percent of the households have cable television and 60 percent of the households have videocassette record
alexandr1967 [171]

Answer:

60,000

Step-by-step explanation:

Let the total people in the household be 100%

If 80 percent of the households have cable television, 60 percent of the households have videocassette recorders and the number of households that have both cable television and videocassette recorders is 'x' percent. The number of households having ONLY cable television will be 80-x while households having ONLY videocassette will be 60-x.

To get x, we will have;

80-x + 60-x + x = 100

140-x = 100

x = 140-100

x = 40

This shows that 40% of the households have both cable television and videocassette.

If there are 150,000 households in the city, then the number of households that have both cable television and videocassette recorders could be 40% of 150,000

= 40/100 × 150,000

= 60,000

Number of households that owns both television and videocassette could be from 60,000.

3 0
4 years ago
Read 2 more answers
Select the data points that need to be removed from this table for it to represent a linear function.
gogolik [260]

Step-by-step explanation: First, let's graph this down.

With all the points touching except (-2, -6) and (8, 18), it's safe to say that these are the coordinates that have to be removed. Also, just for an extra help, the linear line is 2x + 1 = y

5 0
3 years ago
The bar chart shows all the eye colours of students in a class. What fraction of the students have blue eyes? Give your answer i
Burka [1]

Answer:

1/29

Step-by-step explanation:

There are 29 students in total, and the students with blue eyes is only 1.

The fraction would be 1/29 and this is its simplest form.

5 0
3 years ago
Which price choice is the lowest price per ounce?(5 points) Choice A: 5 ounces of raisins for $1.49 Choice B: 12 ounces of raisi
Strike441 [17]
The cost of 5 ounces of raisins for $1.49 is 29.8 cents per ounce
The cost of 12 ounces of raisins for $3.59 is 29.91 cents per ounce.
Therefore, Choice A is the lowest price per ounce.
7 0
4 years ago
Other questions:
  • Points E's x-and y-coordinates have different signs (one is positive and the other is negative). Neither coordinate is 0. Where
    12·2 answers
  • Which expression could be used to determine the cost of a $50 video game after a 20 percent discount?
    9·3 answers
  • Elijah and his sister went to the movies. They had $34 altogether and spent $9.50 per ticket. Elijah and his sister bought the s
    7·1 answer
  • Please answer the following question I will mark as best answer and thanks​
    14·1 answer
  • Choose the possible descriptions of cross sections formed by the intersection of a plane and a cylinder choose all that apply
    14·1 answer
  • Please simplify this
    12·1 answer
  • Jordan volunteered for the same amount of time each day for 7 days. If he volunteered for 329 minutes altogether, how many minut
    11·1 answer
  • The function f (x) = -4.922 +4.50 + 5 models the height of a ball thrown from five feet high with an initial vertical velocity o
    15·1 answer
  • Plz answer!! thanks
    6·1 answer
  • I need help with just number four. Im lost and confused.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!