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
nlexa [21]
3 years ago
8

A clerical worker takes 2 times as long to finish a job as it does an executive secretary. Working together, it takes them 2 hr

to finish the job. How long would it take the clerical worker, working alone, to finish the job? It would take the clerical worker hr to finish the job working alone. (Type an integer or a decimal.)
Mathematics
1 answer:
MaRussiya [10]3 years ago
7 0

Answer:

It would take the clerical worker 6 hr to finish the job working alone.

Step-by-step explanation:

Let x be the time taken( in hours ) by executive to finish the job when he works alone,

⇒ One hour work of the executive = \frac{1}{x}

According to the question,

Time taken by clerical worker to finish the job alone = 2x hours,

⇒ One hour work of the clerical worker = \frac{1}{2x}

Total work in one hour when they work together = \frac{1}{x}+\frac{1}{2x}

Now, it takes them 2 hr to finish the job together,

So, total work in one hour when they work together = \frac{1}{2}

\implies \frac{1}{x}+\frac{1}{2x}=\frac{1}{2}

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

\frac{3}{x}=1

\implies x = 3

Hence, time taken by clerical worker to finish the job alone = 2(3) = 6 hours

You might be interested in
Half a number increased by 15 is equal to the sum of 5 and the product of 3 and the number.
son4ous [18]

Answer:

(x/2) + 15 = 5 + 3x

Step-by-step explanation:

Follow the steps in the equation. X is your number. First you halve it, then you add 15. Next, set it equal to the other side. The second side is 5 + (because it is the sum) and 3x (the product of 3 and x means multiply them)

3 0
3 years ago
For a year, a chef from a restaurant collected data about the cost of strawberries and cherries in his local food market. this d
torisob [31]

Answer:

A Strawberries generally cost less.

D If the chef pays $6.00 for a pound of fruit, it is most likely cherries.

Step-by-step explanation:

A and D

5 0
3 years ago
Jayden and Derek go to Chipotle. Jayden gets a burrito for $7.49 and Derek gets a lifestyle bowl for $8.29. They each get a drin
madam [21]

Answer:

$18.97

Step-by-step explanation:

Add $7.49, $8.29, and $1.79 together= $17.57.

Then, add the 8% tax. So $17.57+8% of tax= $18.97.

3 0
3 years ago
If B=3x^{2}-x+3 and A=x-6, find an expression that equals 2B+3A in standard form.
Ivan

9514 1404 393

Answer:

  6x^2 +x -12

Step-by-step explanation:

Substitute for A and B and collect terms.

  2B +3A

  = 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B

  = 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses

  = 6x^2 +x -12 . . . . . . . . . . . . collect terms

7 0
3 years ago
What is a mathematical expression of charles' law? chose one: _____t1/v1=t2/v1 _____v1/t1=v2/t2 _____v1t2=v2/t1 _____v1/t2=v2/t1
GarryVolchara [31]
The correct answer is:  [B]:  " v₁ / t₁ = v₂ / t₂<span> " .
______________________________________________</span>
6 0
3 years ago
Other questions:
  • Select the three ratios that represent the number of blue marbles to red marbles.
    5·2 answers
  • Please help me on this !!!!!
    7·1 answer
  • What is the next number of the sequence... and what is the pattern 2,5,7,12,19,31
    14·1 answer
  • Density is mass divided by volume. Find the density of an aluminum block with a mass of 35 grams and a volume of 14 cm3?.
    12·1 answer
  • Can someone help please
    9·1 answer
  • The area of a rectangle is 44m. The height is 11/3m. What is the length?
    15·1 answer
  • What’s the answer to this question ?
    13·2 answers
  • Sin2A-sin2B+sin2C=4cosA×sinB×cosC<br>​
    10·1 answer
  • What's the correct answer to this math problem?<br> 27.4-3.2×2
    14·2 answers
  • -21 = 4x + 7 <br> It's those 2 step equations please explain how to do it thank you.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!