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
Ulleksa [173]
3 years ago
13

The difference of twice a number and another number is 5. The sum of the two numbers is 19. Find the numbers

Mathematics
2 answers:
Scilla [17]3 years ago
8 0

Answer:

12 & 7

Step-by-step explanation:

*)Solve the system of equations:

x+y=19

x-y =5

=> 2y=14 =>y = 7

y=7 => x = 12

joja [24]3 years ago
7 0

Answer:

12 & 7

Step-by-step explanation:

12 + 7=19

12 - 7=5

You might be interested in
The formula a=6s^2 will calculate the surface area of a cube. suppose you have a cube that has a surface area of 216 square inch
lawyer [7]
216 = 6s^2

can be solved in the following manner.

216/6=s^2
36 = s^2
sqrt(36) = s

flip for better overview

s = 6

the length of each side is 6 inches. :)
4 0
3 years ago
In a sample of 66 cabinets, the average height was found to be 32.2in. with a standard deviation of 2.1. Give a point estimate f
andrew11 [14]

Answer:

2.10

Step-by-step explanation:

The point estimate for the population standard deviation of the height of the cabinets equals to the provided standard deviation of the cabinets. Rounding off the given standard deviation which is 2.1 to 2 decimal places as the question requires then the point estimate for the population standard deviation of the height of the cabinets is approximately 2.10 ( 2 decimal places)

7 0
3 years ago
A building in the shape of a pyramid was recently built. Each side of the pyramid’s square base has a length of 40 feet and the
Alex

Answer:32,000ft^3

Step-by-step explanation:

3 0
3 years ago
Write a problem that can be solved using a flowchart and working backward. Then solve the problem.
Jlenok [28]
2+2=4

2+2=4

this is easy
7 0
3 years ago
Quadrilateral PAID is a rectangle whose diagonals have the endpoints P(-3, -2)I(4, -7) and A(4, -2)D(-3, -7). Find the diagonals
BARSIC [14]

Answer:

(0.5,-4.5)

Step-by-step explanation:

The given rectangle has diagonals have the endpoints P(-3, -2) ,I(4, -7) and A(4, -2) ,D(-3, -7)

The diagonals of the rectangle bisect each other so we use the midpoint formula to find their point of intersection.

The midpoint formula is;

(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

We use any pair of endpoints of the diagonals to find the point of intersection.

Using A(4, -2) ,D(-3, -7)

(\frac{4+-3}{2},\frac{-2+-7}{2})

(\frac{1}{2},\frac{-9}{2})

or

(0.5,-4.5)

7 0
3 years ago
Other questions:
  • What is the value of z in the table? A 4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 L of an 8% s
    15·2 answers
  • Need help with this drug calc problem! Number 29
    15·1 answer
  • You invest $1,000.00 in one account and $4,000.00 in another account. Both accounts have the same interest rate over the same am
    7·1 answer
  • When g(x) is divided by x + 4 the remainder is 0. Given g(x)=x^4+3x^3-6x+8 which conclusion about g(x) is true?
    10·1 answer
  • How many sides does a nonagon have?
    14·1 answer
  • Someone help me asap please!!!!
    10·1 answer
  • Factor 54+27 using the GCF.
    10·2 answers
  • What is the surface area of that
    15·1 answer
  • The manufacturer of the ColorSmart-5000 television set claims 95 percent of its sets last at least five years without needing a
    15·1 answer
  • I need help please and thank you !
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!