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
Umnica [9.8K]
3 years ago
10

El administrador de una cafetería sabe que vende diariamente 50 litros de jugo mixto. Para elaborar este jugo se emplean dos pre

parados: uno de jugo de naranja, que contiene un 5% de jugo natural y otro preparado de jugo de toronja, que contiene 25% de jugo natural. Si se desea que el jugo mixto contenga un 10% de jugo natural ¿Cuántos litros de cada preparado se deben emplear?
Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0

Answer:

Se necesitan 37.5 litros del preparado que contiene 5% de jugo natural, y 12.5 litros del que contiene 25%.

Step-by-step explanation:

Primero calculamos la cantidad total de jugo natural que se necesita, a partir del volumen de jugo mixto que se quiere vender:

  • 50 L * 10/100 = 5 L

Ahora, que X sean los litros del preparado con jugo de 5%, y que Y sean los litros del preparado con jugo de 25%:

La suma de ambos preparados tiene que ser 50 L:

1.    x + y = 50

La suma del jugo natural tiene que ser 5:

2.   x*5/100 + y*25/100 = 5

Por lo que tenemos <em>un sistema de dos ecuaciones y dos incognitas</em>.

Expresamos x en términos de y:

  • x + y = 50
  • x = 50 - y

Reemplazamos x en la segunda ecuación:

  • (50-y)*5/100 + y*25/100 = 5

Y despejamos <em>y</em>:

  • 2.5 - 0.05y + 0.25y = 5
  • 0.20y = 2.5
  • y = 12.5

Usando ese valor de y, calculamos x:

  • x + 12.5 = 50
  • x = 37.5

You might be interested in
Evaluate 2xy when x = -1/4 and y = 3
Tcecarenko [31]

Answer:

-1.5

Step-by-step explanation:

2(-1/4)(3)

=-1.5

You replace x with -1/4 and y with 3 inside of parenthesis

6 0
3 years ago
4 more than twice a number
Nataliya [291]
Twice means two times something so2a. Four more than means adding for so your answer is 2a+4
7 0
3 years ago
Kelso sold digital cameras on her website. She bought the cameras for $65 each and included 60% markup to get the selling price.
Butoxors [25]
Find 60% of 65 then add it to 65

0.6 x 65 = 39

now add it to 65:

39 + 65 = 104

They are selling them for 104$
 
6 0
3 years ago
I don't know i just need help with this quiz ok
ololo11 [35]
The answer is 73....
5 0
3 years ago
If m = 5 and n = -2, evaluate 3m - 4n and n2 - m and find the product of the two expressions.
ddd [48]

Hence the correct answer is C) -23

Further explanation:

We have to put the values of m and n into both expression first separately and then multiply the answers.

Given expressions are:

Exp\ 1:3m-4n\\Exp\ 2: n^2-m

The values are:

m=5\\n=-2

Putting the values in expression 1:

3m-4n\\=3(5)-4(-2)\\=15+8\\=23

Putting the values of m and n in second expression

n^2-m\\=(-2)^2-5\\=4-5\\=-1

Multiplying both expressions:

(3m-4n)(n^2-m)=23* (-1)=-23

Hence the correct answer is C) -23

Keywords: Polynomials, Putting values in expressions

Learn more about polynomials at:

  • brainly.com/question/4142886
  • brainly.com/question/4934417

#LearnwithBrainly

8 0
3 years ago
Other questions:
  • 2(4x-3) greater-3(3x)+5x
    10·1 answer
  • Artie can travel 120.25 miles on 6.5 gallons of gas.
    8·2 answers
  • 4<br> The total mass of 38 spoons is 1824g.<br> Work out the mass of 53 spoons.
    15·1 answer
  • Find the 9th term of the following geometric sequence: 1, –3, 9, –27. PLEASEEEEE HELP!!!!!!
    13·1 answer
  • (w+14)/(4w+6)=(3)/(4) show work plz
    13·1 answer
  • What is 1/100th of 882
    8·2 answers
  • ---&gt;WORTH 50 POINTS &lt;--- Question in the attachment below. I will give brainiest to best answer. Please show work.
    15·2 answers
  • What is an expression for 43 more than t
    6·2 answers
  • What makes an equation true?
    13·2 answers
  • What is the recursive formula for each arithmetic sequence. -5,-8.5,-12,-15.5,-19
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!