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
TEA [102]
3 years ago
7

Working together, two pumps can drain a certain pool in 6 hours. If it takes the older pump 15 hours to drain the pool by itself

, how pump to drain the pool on its own?
Mathematics
1 answer:
stellarik [79]3 years ago
5 0

Answer:

10

Step-by-step explanation:

Rate of drainage for pump A and B = [1 pool drained]/[6 hours]

Rate of drainage for pump A (older pump) = [1 pool drained]/[15 hours]

Rate for pump B (newer pump) = [1 pool drained]/[t hours]

Thus, adding the rate of drainage of A and B,

1/t + 1/15 = 1/6

t=10

You might be interested in
Convert standard form to slope<br><br> 6x+5y=-15
siniylev [52]

Answer:

Step-by-step explanation:

1. Isolate Y by subtracting 6x from both sides.

2. Divide everything by 5, since 5 is the coefficient of Y

Final equation:

Y = -\frac{6}{5} x -3

Hope this helps!

4 0
3 years ago
During the month of February, Fabulous Feet Shoe Mart sold 30 pairs of red loafers. After an ad campaign to boost sales, they so
blagie [28]
20%

20% of 30 =6
30+6 = 36

6 0
3 years ago
Read 2 more answers
A new cell phone cost $85, and the sales tax is 9%. What is the amount of the sales tax
elixir [45]

The sales tax is $7.67

In total, with the sales tax, the phone would be $92.65

4 0
3 years ago
What is x? Options: 81, 57, 143, 66.
jeyben [28]

Answer:

x = 103

Step-by-step explanation:

In my opinion, because x and 77 are the supplementary angles, so 180-77 = x or x+77=180. The answer should be 103......even though it's not in the options (I'm sorry).

3 0
3 years ago
Read 2 more answers
In efforts of improving their orofit margins, a company is considering creating their own manufacturing plant for their product.
Trava [24]

Answer:

To get an overall profit of $100,000, then 3,571 items is needed to be produced

Step-by-step explanation:

Mathematically;

Profit = Revenue - Production cost

In the question, we are told that the profit we are expecting is $100,000

Let the number of items to be produced for sales be x items

Now let’s look at the production cost ;

The production cost will be number of items for sale * production cost = 15 * x = $15x

Now, we need to add the start-up cost to the production cost to get the total amount spent on production;

Mathematically the total amount would be = $25,000 + $15x

Let’s look at the revenue;

The revenue will be selling price of each item * price of each item;

Mathematically, that would be 50 * x = $50x

So therefore;

50x - (25,000 + 15x) = 100,000

50x -25,000 -15x = 100,000

35x = 100,000 + 25,000

35x = 125,000

x = 125,000/35 = 3571.42 which is approximately 3,571 items

7 0
4 years ago
Other questions:
  • A party is thrown where 25 tables are used. Each table either sits 4 people or 6 people. A total of 116 people can be sat at the
    11·1 answer
  • Which expression represents the fourth term in the binomial expansion of (e + 2f)10?
    5·2 answers
  • A city grid of Anytown, USA is shown on the grid below. The fire department is represented by quadrilateral RSTU. Another fire d
    9·2 answers
  • A school dance committee is made up of 2 freshman, 6 sophomores, 3 juniors, and 2 seniors.
    7·1 answer
  • To get from the post office to the library, Sindy walked due north and then due east. The distance Sindy walked east is 20 meter
    15·2 answers
  • The triangle below has an area of 75 units squared. Find the missing side.
    11·1 answer
  • Which transformation will NOTTTTT carry the rectangle onto itself?
    5·2 answers
  • Edgenutiy which triangle is a 30 60 90
    11·2 answers
  • Write V – 250 in simplest radical form.
    8·2 answers
  • a train traveled 162 miles in 3hours. At that rate, how many miles will the train travel in 1/3 hour?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!