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
Anika [276]
3 years ago
9

Sam is filling up his pool. The water hose filled the 315 gallon pool in 45 minutes. At what rate did the hose fill the pool in

gallons per minute?
Mathematics
2 answers:
scoray [572]3 years ago
6 0

Answer:

rate = 7 gallons per minute

Step-by-step explanation:

rate filled is the total amount divided by the time

rate = 315 gallons/ 45 minutes

rate = 7 gallons per minute

Serhud [2]3 years ago
3 0

Answer:

7 gallons per minute

Step-by-step explanation:

315/45 = 7

You might be interested in
Imma give brainliest just help me
ruslelena [56]

Answer: 3:4

Step-by-step explanation: because the ratio of a :b is 2:3 which means b is 3 . And the ratio of a:c is 3 :4 which means c is 4.

And 3:4 is in simplest form .

Hope it helps.

5 0
3 years ago
Read 2 more answers
Solve. x^2+ 5x-2=0<br> A. <br> B.<br> C.<br> D.
11Alexandr11 [23.1K]

the answer is........ B

4 0
3 years ago
There are 20 children in the cast of a class play, and 8 of the children are boys. of the boys, 4 have a speaking part in the pl
kotykmax [81]
<span>it all looks confusing when we try to juggle with all those numbers in the head. The problem can be solved systematically by constructing a contingency table.
 </span>role/gender B G total
 speaking...... 4 4 8
<span> silent............ 4 8 12
 total............. 8 12 20
 </span>Probability of a child having a speaking part is therefore
 (4+4)/20=8/20=2/5
  a. 2/5
5 0
3 years ago
Read 2 more answers
In how many ways can 6 different kinds of pizza be listed on the menu?
vredina [299]

Answer: 720

Step-by-step explanation:

Since we are to list 6 different kinds of Pizza and no condition is attached , this arrangement could be done in 6! ways.

That is

6! = 720

This means that the different kind of pizza could be listed in 720 ways

5 0
3 years ago
Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of
Olin [163]

Answer:

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the avergae number of weeks an individual is unemployed of a population, and for this case we know the distribution for X is given by:

X \sim N(17.5,4)  

Where \mu=17.5 and \sigma=4

Since the distribution for X is normal then, the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu= 17.5, \frac{\sigma}{\sqrt{n}}= \frac{4}{\sqrt{50}}=0.566)

We select a sample of n =50 people. And we want to find the following probability

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = P(Z

4 0
3 years ago
Other questions:
  • In a candy mix there are 4 green bars for every 3 red bars how many red bars are ther if there are 200 green bars
    11·2 answers
  • How do I solve this problem
    8·2 answers
  • What is number 3??????????????????
    9·2 answers
  • T is the midpoint of PQ. PT = (6x-3) and QT = (2x+5)
    11·2 answers
  • HELP What is the approximate volume of a cone with a height of 12 in. And a radius of 9in.?
    15·1 answer
  • 1. A company was studying the demographics of their customers. As part of the study, they collected the following variables: mar
    15·1 answer
  • Devin’s friend Ryan lives 2 blocks west and 5 blocks south of Devin. Devin’s friend Andy lives 7 blocks east and 2 block north o
    14·2 answers
  • Do anybody what this is?
    5·1 answer
  • Is it true or false?
    14·2 answers
  • Unit 1: Geometry Basics Homework
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!