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
sp2606 [1]
3 years ago
11

how long will it take 14 machines to complete the task, given that 8 machines can complete the same task in 7 days?

Mathematics
1 answer:
torisob [31]3 years ago
4 0

Answer:

4 days

Step-by-step explanation:

If 8 machines can complete a task in 7 days, how long will 14 machines take?

So, it is obvious that if the number of machines increases, the number of days taken to complete the task decreases; thus proving that this is an indirect / inverse proportion.

Let's take <em>x</em> as the number of days we need to find out.

 8 machines : 7 days

14 machines : <em>x</em> days

14 × <em>x </em>= 8 × 7

14<em>x </em>= 56

x = \frac{56}{14}

x = 4

You might be interested in
Find the slope intercept <br>(9,5),(7,-11)<br>y=​
grin007 [14]

Answer:

y=8x-67

Step-by-step explanation:

So the question is what is the equation for the following two coordinate points?

Well to start off what is the formula? The formula is called the linear equation. Which is y=mx+b. What does these letters or "variables" mean or represent?! Welp, m stands for the slope, which is "Δy over Δx." Some people call say "the change of y over x." I call it the rise over run. So it is saying y over x. The b in the linear equation is the y-intercept. The y-intercept is when the line crosses the y-axis.

With that being said, let's find the slope. But how? Well with the Δy over Δx. The formula is y₂-y₁ over x₂-x₁. With the two coordinate points we can label them.

y₂=5

y₁=(-11)

x₂=9

x₁= 7

Now let set it up into the equation of y over x

Slope =  <u> 5- (-11) </u> = <u> 5 + 11  </u> = <u>  16 </u> = 8

                  9-7         9-7          2

So we now have the slope! Which is 8! So put that into the linear equation!

y=8x+b

Next, we need to find b, the y-intercept! How do we do that well, we can figure it out by one of the coordinate points! Let use the (7, -11) point for example! Remember, x= 7 and y= (-11)

(-11) = 8(7) + b

(-11) = 56 + b

<u>-56   -56</u>

-67 =  b

We now have b, which is negative 67! So we need to put all the information we have found into the linear equation!

y=8x-67

6 0
4 years ago
Please help !! Thank you so much !
Alekssandra [29.7K]

Answer:

A, because m is less than 4.4 so 4.4, is gonna be greater

6 0
3 years ago
Read 2 more answers
You are a waterman daily plying the waters of Chesapeake Bay for blue crabs (Callinectes sapidus), the best-tasting crustacean i
notsponge [240]

The question given is incomplete, I googled and got the complete question as below:

You are a waterman daily plying the waters of Chesapeake Bay for blue crabs (Callinectes sapidus), the best-tasting crustacean in the world. Crab populations and commercial catch rates are highly variable, but the fishery is under constant pressure from over-fishing, habitat destruction, and pollution. These days, you tend to pull crab pots containing an average of 2.4 crabs per pot. Given that you are economically challenged as most commercial fishermen are, and have an expensive boat to pay off, you’re always interested in projecting your income for the day. At the end of one day, you calculate that you’ll need 7 legal-sized crabs in your last pot in order to break even for the day. Use these data to address the following questions. Show your work.

a. What is the probability that your last pot will have the necessary 7 crabs?

b. What is the probability that your last pot will be empty?

Answer:

a. Probability = 0.0083

b. Probability = 0.0907

Step-by-step explanation:

This is Poisson distribution with parameter λ=2.4

a)

The probability that your last pot will have the necessary 7 crabs is calculated below:

P(X=7)=  {e-2.4*2.47/7!} = 0.0083

b)

The probability that your last pot will be empty is calculated as:

P(X=0)=  {e-2.4*2.40/0!} = 0.0907

8 0
3 years ago
The equation of the parabola whose focus is at (7 0) and directrix at y=-7 is
bija089 [108]
The equation of the parabola whose focus is at (7, 0) and directrix at y = -7 is 
(x-7)^2 = 14(y + 7/2)

Hope this helps
5 0
3 years ago
Please answer this question
ICE Princess25 [194]

Answer:

A: 77

Step-by-step explanation:

360 - 109 - 137 - 37 = 77

3 0
3 years ago
Other questions:
  • Charlie has 6 times as many stamps as Ryan. They have 1608 stamps in all. How many more does Charlie have than Ryan?
    11·1 answer
  • Oli's stuffed bear shop has 456 bears in stock. Exactly half of them are made from wool. What is the divisor
    8·2 answers
  • I need help with this homework question
    7·2 answers
  • What numbers can I divide that will give me a quotient that’s is greater than 20 but less than 25.
    13·2 answers
  • What is the slope-intercept form of the equation of a line that passes through (5, -4) and has a slope of 34?
    8·1 answer
  • The equation of a circle is given below.
    10·1 answer
  • Ravi makes lemonade by mixing lemon juice and water.
    6·2 answers
  • (9^6 * 7^-9)^-4.<br> Thanks!
    5·1 answer
  • The manager of a food store noted that for every 20 persons who visit the store, they sell 6 burgers at $2.35 each, 8 aerated dr
    9·1 answer
  • Donna is putting 9 books in a row on the bookshelf she will put one of the books gullivers travel in the first spot she will put
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!