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
KIM [24]
3 years ago
15

Working alone at its constant rate, machine A produces x boxes in 10 minutes and working alone at its constant rate, machine B p

roduces 2x boxes in 5 minutes. How many minutes does it take machines A and B, working simultaneously at their respective constant rates, to produce 3x boxes?
Mathematics
1 answer:
vladimir2022 [97]3 years ago
7 0

Answer:

6 minutes

Step-by-step explanation:

Machine A produces x boxes in 10 minutes

In one minute, the machine produces x/10 boxes

Machine B produces 2x boxes in 5 minutes

In one minute, the machine produces 2x/5 boxes

Therefore in one minutes, both boxes working together will produce

= 2x/5 + x/10

=5x/10

=x/2 boxes

To produce 3x boxes, the time required

= 3x/(x/2)

= 3 × 2

= 6

It take machines A and B, working simultaneously at their respective constant rates, to produce 3x boxes in 6 minutes

You might be interested in
You deposit $2000 in Account A, which pays 2.25% annual interest compounded monthly. You deposit another $2000 in Account B, whi
Romashka [77]
The equations woould look like this 
a=2000(1+.0225/12) to the 12th power 
b=2000(1+.03/12) to the 12th power 
but i cant find the answer cuz i have no calculator sorry but i hope i still helped.
7 0
2 years ago
The height of a ball in meters is modeled by f(x) equals negative 5X squared +50 X where X is the time in seconds after it is hi
luda_lava [24]

Answer:

10 seconds

Step-by-step explanation:

Find the zeros by equating f(x) to zero, that is

- 5x² + 50x = 0 ← factor out - 5x from each term

- 5x(x - 10) = 0

Equate each factor to zero and solve for x

- 5x = 0 ⇒ x = 0

x - 10 = 0 ⇒ x = 10

x = 0 denotes the time when the ball is struck and x = 10 when the ball returns to the ground.

Time in air = 10 - 0 = 10 seconds

3 0
3 years ago
Please help!!! Brainliest for whoever is right! What is the sum of the rational expressions below?
fenix001 [56]

Answer:

<h2>\frac{5 {x}^{2} + 5x + 3 }{3 {x}^{2}  + 3x}</h2>

Step-by-step explanation:

\frac{2x + 3}{3x}  +  \frac{x}{ x + 1}

Write all the numerators above the least common denominator

\frac{(x + 1)(2x + 3) + 3 {x}^{2} }{3x(x + 1)}

Multiply the parentheses

\frac{2 {x}^{2} + 3x + 2x + 3 + 3 {x}^{2}  }{3x(x + 1)}

Distribute 3x through the parentheses

\frac{2 {x}^{2}  + 3x + 2x + 3 + 3 {x}^{2} }{3 {x}^{2}  + 3x}

Collect like terms=\frac{5 {x}^{2} + 5x + 3 }{3 {x}^{2} + 3 x}

Hope this helps...

Good luck on your assignment...

6 0
3 years ago
Find the limit. Use l'Hospital's Rule where appropriate. If there is a more elementary method, consider using it. lim x→9 x − 9
luda_lava [24]

Without resorting to L'Hopitâl's rule,

\displaystyle\lim_{x\to9}\frac{x-9}{x^2-81}=\lim_{x\to9}\frac{x-9}{(x-9)(x+9)}=\lim_{x\to9}\frac1{x+9}=\frac1{18}

With the rule, we get the same result:

\displaystyle\lim_{x\to9}\frac{x-9}{x^2-81}=\lim_{x\to9}\frac1{2x}=\frac1{18}

8 0
3 years ago
The meaning of the graph suggested by the graph line is
madam [21]

Answer:c

Step-by-step explanation:

.

3 0
2 years ago
Read 2 more answers
Other questions:
  • The radius of circle A is three feet less than twice the diameter of circle B. If the sun mmm of the diameters of both circles i
    5·2 answers
  • Marcus has three dowels with the lengths shown in the table. Complete the table to give each length in inches, feet, and yards.
    7·1 answer
  • Convert 11/50 into a decimal
    6·2 answers
  • How many ways can a rectangle be reflected across an axis of symmetry so that it carries onto itself?
    5·2 answers
  • An equilateral triangle has three congruent sides. If sides are congruent, the opposite angles are congruent.
    5·1 answer
  • Does (7, 8) make the equation y = x + 5 true?
    5·2 answers
  • -6y + 12 = - 66<br> I feel like I lost my brain today I can’t think right... can you help me out
    15·2 answers
  • Help me do this i will pick brailest if right and it is 45 points!
    8·2 answers
  • Wich situation can NOT represent a proportional relationship
    5·1 answer
  • Pls answer this question!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!