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
lara [203]
3 years ago
11

It takes a printer 10 hours to print the class schedules for all of the students in a college. A faster printer can do the job i

n 6 hours. How long will it take to do the job if both printers are used?
Mathematics
1 answer:
kolbaska11 [484]3 years ago
4 0
If for the slower printer it takes 10 hours for the whole thing, how much has it done in  1 hour?  well, since it takes 10 hours total, in 1 hour it has only done 1/10 th of the whole work.

the faster printer however, can do it in 6 total, how much has it done in 1 hour?  well, 1/6 of the whole work.

now, let's say, they both work together, and it takes "t" hours to finish the whole thing with both rolling.

let's add both rates to see how much that is,

\bf \stackrel{slower~printer}{\cfrac{1}{10}}~~+~~\stackrel{faster~printer}{\cfrac{1}{6}}~~=~~\stackrel{1hr~work}{\cfrac{1}{t}}\\\\
-------------------------------\\\\
\textit{LCD is 30}\implies \cfrac{3+5}{30}=\cfrac{1}{t}\implies \cfrac{8}{30}=\cfrac{1}{t}\implies t=\cfrac{30\cdot 1}{80}

which is 3 hours and 45 minutes.
You might be interested in
Which graph represents a function?
vivado [14]

Answer:

c

Step-by-step explanation:

7 0
2 years ago
F(x) = 3x + 12, g(x) = 3x - 1;<br> =<br> =<br> Find (fºg)(x).
MissTica

\text{Given that,}\\\\f(x) = 3x +12, ~ ~ g(x) = 3x -1\\\\(f \circ g)(x)\\\\=f(g(x))\\\\=f(3x-1)\\\\=3(3x-1) +12\\\\=9x - 3 +12\\\\=9x +9\\\\=9(x+1)

3 0
2 years ago
A) x+(3x÷2y)<br>b) (b⁹)²×b⁵÷b¹¹=<br>c) (4²)⁶×4⁷÷4¹⁶=​
monitta

Answer:

a) x+3x/2y or (3x+2xy)/2y

b) b^12

c) 4^3 or 64

Step-by-step explanation:

4 0
2 years ago
What is "the quotient of a number and 12." In number form?​
kykrilka [37]

Answer:

x/12

Step-by-step explanation:

4 0
3 years ago
A restaurant uses 4375 pounds of cheese for every 8 3/4 pizzas atvrgis rate how many pounds of cheese are used per pizza
Arlecino [84]
34 pounds that’s the answer
7 0
3 years ago
Read 2 more answers
Other questions:
  • Plz answer :) i need help i will give heart and comment
    14·1 answer
  • A rectangle is 6 ft long and 11 ft wide. What is the length of the diagonal of the<br> rectangle?
    7·2 answers
  • What does tranquil mean for feet?
    14·2 answers
  • Area models 6437 divide 5
    10·1 answer
  • If the 8% tax on a sale amounts to 96. What is the final price (tax included) of the item?
    11·2 answers
  • Dawn enjoys exercising on the hiking trail by her house. She ran 2/5 of
    5·1 answer
  • What would be the easiest way to solve the system composed of the following two equations? 3=x+4y and 2x=-9
    9·1 answer
  • The cost to rent a car is $25 plus an additional $0.15 for each mile the car is driven. How many miles was a car driven if it ha
    10·2 answers
  • Manuel goes to see a hockey game that lasts for 1 hour and 50 minutes.
    5·1 answer
  • I badly want the answer to these☠️​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!