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
Advocard [28]
3 years ago
15

1) Find the value of two numbers if their sum is 12 and their difference is 4.

Mathematics
1 answer:
Ivahew [28]3 years ago
4 0

Numbers are 4 and 8

<u>Step-by-step explanation:</u>

Step 1:

Let the numbers be x and y. Given that their sum is 12 and difference is 4. Form equations for this data.

⇒ x + y = 12 ------ (1)

⇒ x - y = 4 -------- (2)

Subtract eq (2) from (1)

⇒ 2x = 8

⇒ x = 4

Step 2:

Find y.

⇒ y = 12 - x = 12 - 4 = 8

You might be interested in
If f (x) = 3x²-7 , find f(4)
vitfil [10]
Hello, 
To solve this function for f(4) we need to plug 4 into f(x) and the result will be our answer. We know that f(x) is 3x^2-7. Plugging in 4 we get 3(4)^2-7=41. Therefore, f(4)=41. Hope this helps!
6 0
3 years ago
Read 2 more answers
Will Mark!! The length of a rectangle is represented by 7x- y, and the width is represented by 3x + 4y. Write polynomial that re
nikdorinn [45]

Answer:

2(7x-y) + 2(3x+4y)

7 0
3 years ago
HELPPPP PLEASE: calculate the equation for line passes (-9,36) (21,56)
STALIN [3.7K]
If you subtract -9-21 and 36-56
8 0
3 years ago
The members of a club hire a bus for $2100.seven members withdraw from the club and the remaining members have to pay $10 more e
dlinn [17]
42 members originally agreed to go on the bus.
5 0
3 years ago
1000 students participated in a survey on a university campus about their TV watching habits. All
nasty-shy [4]

Hi, you've asked an unclear question. However, I inferred you may want to know the actual number of students represented by the percentages of 27%, and 61%.

<u>Explanation:</u>

Finding percentage usually involves performing two operations; multiplication and division.

First, all (100%) of respondents said they watched TV at least at some point during the day.

Next, 27% of respondents stated that they only  watched television during prime time hours, in which the actual number of students represented by the percentage is calculated by dividing 27 by 100 and multiplying by 1000 =

\frac{27}{100} * 1000 = 270.

Finally, we are told 61% of respondents stated that they spend prime time  hours in their dorm rooms. The actual number of students represented by the percentage is calculated by dividing 61 by 100 and multiplying by 1000 =

\frac{61}{100} * 1000 = 610

5 0
3 years ago
Other questions:
  • Last week, Brianna earned $565.75, which included a $100 bonus. She makes $11.50 an hour. With x representing the number of hour
    7·2 answers
  • Which is greater 1 millennium or 10 centuries?
    8·2 answers
  • Please answer quickly with explanation
    14·1 answer
  • Which of the following equations was used to graph the line shown?
    9·1 answer
  • Which shoes th graph of the solution set of 6x+3y&lt;12
    11·1 answer
  • Those shortlisted are entered into a final game of chance. There are six balls in a bag (2 blue balls, 2 green balls and 2 golde
    8·1 answer
  • Please help me with this equation
    13·1 answer
  • At a lunch shop, Aisha buys 2 veggie wraps and 3 apples. Her bill is $14.00. Jaime buys 3 veggie wraps and 2 apples. His bill is
    8·1 answer
  • Find the length of side x in the simplest radical form with a rational denominator.
    11·1 answer
  • Which of these functions have a domain of all real numbers?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!