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
sergij07 [2.7K]
3 years ago
9

The sum of 2 numbers is 50. The sum of 1/4 of the first number and 2/3 of the second number is 25.What are the numbers?

Mathematics
1 answer:
tino4ka555 [31]3 years ago
6 0

Answer:

First number: 20

Second number: 30

Step-by-step explanation:

First#:   x

Second#:   y

Constraints:

   x + y = 50      

   1/4x + 2/3y = 25

Isolate variable y:

   x + y = 50    

  -1/4 (x + y = 50 )

 -1/4x - 1/4y = -12.5

  Add equations the two equations to eliminate x:

    -1/4x - 1/4y = -12.5

     1/4x + 2/3y = 25

  _________________

       5/12y = 12.5

           5y = 150

              y = 30

Substitution to find x:

       x + y = 50  

       x + 30 = 50

              x = 20

You might be interested in
Find a polynomial function of the lowest degree, with real coefficients, with the given roots.
makvit [3.9K]

Answer:

D

Step-by-step explanation:

Roots into factors:

x = -4 ----> (x + 4)

x = i -----> (x - i)

x = 5 -----> (x - 5)

(x + i)(x - 4)(x + 5)

(x - i)(x² - 4x + 5x - 20)

(x - i)(x² + x - 20)

x³ + x² - 20x - (ix² + ix - 20i)

x³ + (1 - i)x² - (20 + i)x + 20i

5 0
3 years ago
Leila says that 75% of a number will always be greater than 50% of any other number. Complete one inequality to support Leilas c
Greeley [361]
If a number is positive, Leila's theory that 75% of a number will always be greater than 50% of another number is <em>true</em>;<em> </em>however, if both numbers are negative, or if the number of which she finds 50% is much greater than the number of which she finds 75%, Leila's theory could be incorrect.

This inequality shows that Leila is correct: 100(0.75) \geq 50(0.50) (which simplifies to 75 \geq 25)

This inequality shows that Leila is incorrect: 50(0.75) \geq 100(0.50) (which simplifies to 37.5 \geq 50)

Hope this helps!
6 0
3 years ago
Read 2 more answers
Which expression is not equivalent to 3x – 2?
ANTONII [103]

Answer: B. 2x + 2 + x

Step-by-step explanation:

I took the quiz.

5 0
3 years ago
Read 2 more answers
-6-12:(+3) <br> Efectueaza
sleet_krkn [62]
The answer is -10.
I hope this is right...
4 0
4 years ago
Read 2 more answers
The bake sale only sold two items. Cookies cost $2 and mini pies cost $5. Josie bought twice
Vlad [161]

she bought 11 cookies and 1 mince pie

3 0
3 years ago
Read 2 more answers
Other questions:
  • HELP ASSAP WITH THIS QUESTION
    5·1 answer
  • Math diagonal polygon 50 points
    11·2 answers
  • 6÷x (1+2)=1 please tell me how to work this out
    9·1 answer
  • Mabel is comparing the prices of two car rental companies. Company A charges $35 per day and an additional $15 as service charge
    14·1 answer
  • Use a calculator to find the approximate value of arccos(0.77).
    14·2 answers
  • Solve this simultaneous equation by using substitution method 3x-2y=12 and x+3y=-7 ​
    9·1 answer
  • What is the greatest common factor (GCF) of :
    12·1 answer
  • I’ll give Brainly est help. B
    7·1 answer
  • Hello I need help please
    9·1 answer
  • A football is kicked vertically upward from a height of 2 feet with an initial speed of 50 feet per second. The formula h=2+50t-
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!