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
inysia [295]
3 years ago
7

a 18,000 - gallon pool is being filled at a rate of 20 gallons per minute. At this rate ,how many minutes will it take to fill t

his pool 2/5 full ? plssssssss help me
Mathematics
1 answer:
Ahat [919]3 years ago
4 0
The total capacity of the pool = 18000 gallon
The total volume of the pool when calculated to 2/5 = (2/5) * 18000
                                                                                   = 35000/5 gallons
                                                                                   = 7200 gallons.
Now it is given in the problem that that
Rate at which the pool is filled with water = 20 gallons per minutes
Then
20 gallons of water is filled in = 1 minute
So
7200 gallons of water will be filled in = 7200/20 minute
                                                           = 720/2 minute
                                                           = 360 minute
So 360 minute is required to fill the pool with 2/5 of the total volume of water.
You might be interested in
Ali wants to buy a detached house at RM110,000. the developers require 10% as a deposit and suggests that the balance can be bor
Andrew [12]
We will give RM 35000
7 0
3 years ago
a triangle has a perimeter of 49 inches. the medium side is 7 more than the short side, and the longest side is 5 times the leng
slavikrds [6]
Short side length = x
Medium side = x + 7
Long side = 5x
Total 49, so
x + x + 7 + 5x = 49
If you combine like terms:
7x + 7 = 49
Subtract 7 from both sides
7x = 42
Divide both sides by 7
x = 6 inches
4 0
3 years ago
Read 2 more answers
Sally has three times as many dimes as nickels and twice as many quarters as dimes. In all she has $5.55.How many of each type o
OLEGan [10]
Sally has 3 nickels, 9 dimes, and 18 quarters
3 0
3 years ago
Read 2 more answers
How much will it cost if 12 people come to the party?
saveliy_v [14]

Answer:

y=5x+25

y=5(12)+25

y=85

Step-by-step explanation:

6 0
3 years ago
Suppose the number of hits a webpage receives follows a Poisson distribution. The average number of hits per minute is 2.4.
JulijaS [17]

Answer: a) P(x=0) = 0.0907, b) P(x≥10) = 0.7986

Step-by-step explanation: the probability mass function of a possion probability distribution is given as

P(x=r) = (e^-λ)×(λ^r) /r!

Where λ = fixed rate at which the event is occurring and each event is independent of each other = 2.4

a) P(x= at least one) = P(x≥1)

P(x≥1) = 1 - P(x<1)

But P(x<1) = P(x=0) { we can not continue to negative values because our values of x can only take positive values of integer}

Hence, P(x≥1) = 1 - P(x=0)

P(x=0) = e^-2.4 * 2.4^0/(0!)

P(x=0) = 0.0907×1/1

P(x=0) = 0.0907

b) if the average number of hits in 1 minutes is 2.4 then for 5 minutes we have 2.4×5 = 12.

Hence λ = 12.

P(x= at least 10) =P(x≥10) = 1 - P(x≤9)

P(x≤9) will be gotten using a cumulative possion probability distribution table whose area is to the left of the distribution.

From the table P(x≤9) = 0.2014.

P(x≥10) = 1 - 0.20140

P(x≥10) = 0.7986

4 0
3 years ago
Other questions:
  • Find x if f(x) = 2x + 7 and f(x) = -1.
    9·2 answers
  • Solve the following equation for x to find the total number of people who became members of a social networking site for a certa
    13·2 answers
  • The top of a glass coffee table is a circle. The circumference is 15.7 feet.
    6·1 answer
  • The sum of two number is 65 . One number is 4 times as large as the other . what are the numbers?
    11·1 answer
  • 3 × 0.232 =_________​
    8·2 answers
  • Solve the equation 3x = 9.5 Show and justify each step you take to solve the equation . 3x = 9 Write the equation 9 Divide each
    8·1 answer
  • What must be true if = 30 Ze? Assume a+0,b=0, and y+0.
    5·1 answer
  • List the domain and range of the relation.<br> {(4-3), (8,8), (0.-3)(8.1) (4.3)}<br> The domain is
    5·1 answer
  • Write a linear function f with f(4)=−3 and f(0)=−2.
    8·2 answers
  • Simplify by combining like terms: -11 + 2(4x - 1) + 6 (BRAINLIEST)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!