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
12345 [234]
3 years ago
5

Bob can type 2 letters in 4 hours while bill can do it in six. How many hours will it take them, working together, to type six l

etters
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer:

7hr 12 min

Step-by-step explanation:

Given that

Bob  can type 2 letters in 4 hours

while on the other hand bill can do it in six hours

We need to find out the no of hours in which they type 6 hours

So,

Bob's rate is

= 2 ÷ 4

= 1 ÷ 2 letter per hour

And,  

Bill's rate is

= 2 ÷ 6

= 1 ÷ 3 letter per hour

Now

Together rate is

= 1 ÷ 2 + 1 ÷ 3 = 5 ÷ 6 letter per hour

We know that

rate × hours = production

Let us assume the hours be x

So,  

(5 ÷ 6)x = 6

x = (6 ÷ 5) × 6

x = 36 ÷ 5

= 7 1 ÷ 5

= 7hr 12 min

Maurinko [17]3 years ago
6 0

Answer:

7 hours 12 mins

Step-by-step explanation:

You might be interested in
Just do 11 or 12 or both please im really tired and it 1:34 in the morning plz help
kumpel [21]

Answer:

11)<em>(-1)</em>

<em>12)1.7</em>

Step-by-step explanation:

11)y+z/x                

 (-3)+(-2)/5

 (-5)/5

<em>    (-1)</em>

12)x-5z/y

   5+5(-2)/(-3)

   5+(-10)/(-3)

   (-5)/(-3)

   1.666

 <em>    1.7</em>

<em></em>

<em>Hope this helps you</em>

<em>If you have any question just ask me</em>

3 0
3 years ago
Help me and I’ll thank you
11Alexandr11 [23.1K]

Answer:

-9

Step-by-step explanation:

The question is just asking you to find for what y-value is x  -3

6 0
3 years ago
What is -5+x/4&gt;1? <br> Thanks!
zimovet [89]

The answer to this is:

x>24

4 0
3 years ago
How do you determine where f(x)=cos^(-1)(lnx) is continuous?
olga nikolaevna [1]
\ln x is continuous over its domain, all real x>0.

Meanwhile, \cos^{-1}y is defined for real -1\le y\le1.

If y=\ln x, then we have -1\le \ln x\le1\implies \dfrac1e\le x\le e as the domain of \cos^{-1}(\ln x).

We know that if f and g are continuous functions, then so is the composite function f\circ g.

Both \cos^{-1}y and \ln x are continuous on their domains (excluding the endpoints in the case of \cos^{-1}y), which means \cos^{-1}(\ln x) is continuous over \dfrac1e.
7 0
3 years ago
The system with one and only one solution set is called a/an system
beks73 [17]

Answer:

Consistent and Independent System

Step-by-step explanation:

A system with at least one solution is a consistent system.  A consistent system is said to be independent if it has <u>exactly one solution</u> (often referred to as the <em>unique</em> solution).  The graphs intersect at exactly one point, which gives an ordered-pair (x, y) as the solution of the system.  

6 0
3 years ago
Other questions:
  • What’s the answer to 0.462 / 0.2
    5·2 answers
  • Q10 please people. Any answers :)
    5·1 answer
  • A cylinder container with a diameter 12 cm and height is 8 cm is three fifths full of seeds.The seeds weigh 3.52 oz/cup,And 1 cu
    7·1 answer
  • Need to find the sum of 50
    8·1 answer
  • Given (8x+3k)(9x−2)=0, the product of all solutions is (−3). Find k.
    9·1 answer
  • Among all monthly bills from a certain credit card company, the mean amount billed was $465 and the standard deviation was $300.
    11·1 answer
  • Need help with this ASAP
    11·1 answer
  • If DEF is the original and ABC is the image what is the scale factor of this dilation?
    6·1 answer
  • Kaitlyn and Allison took a standardized algebra test in different states. Kaitlyn takes the test for Virginia and scores a 458.
    15·2 answers
  • A box is filled with 9 red crayons, 5 blue crayons, and 8 yellow crayons. A crayon is chosen at random from the box. Find the pr
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!