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
Aliun [14]
2 years ago
15

Chanita wants to swim the 21-mile English Channel in 48 hours. On the first day she swam 9 miles and then was picked up by a fer

ry to spend the night. The next day, she has 12 hours of daylight to complete the remaining distance. What inequality represents the minimum rate she has to swim on the second day to complete the distance?
Mathematics
1 answer:
sesenic [268]2 years ago
8 0

Answer:the minimum rate is 1 mile per hour.

Step-by-step explanation:

Chanita wants to swim the 21-mile English Channel in 48 hours. Total number of miles that she covered on the first day is 9 miles. Total distance left for her to cover would be

21 - 9 =12 miles.

The next day, she has 12 hours of daylight to complete the remaining distance. Let x represent the minimum rate she has to swim on the second day to complete the distance.

Speed = distance/time

Therefore,

x ≥ 12/12

x ≥ 1

You might be interested in
12. Elly's credit card record for the last 7 months is below. Based on the information from the table, what will be her new bala
blagie [28]

Answer:

52145.55

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
One problem with the widespread use of email is that you receive too much of it.
Kobotan [32]
The answer for your question is True because it says that "Widespread" by that you already know widespread means that it goes every where and you would get it more then one so for that your answer is true:)

Hope this helps:)
6 0
3 years ago
Hello everyone good morning how is everyone doing to day
Zepler [3.9K]
I’m tired I’ve so much homework to complete and a long day of school :(
5 0
3 years ago
Read 2 more answers
Barrett is comparing the membership fees for two museums.The art museum charges a one-time fee of $8.25 plus $2.25 per month. Th
Oksanka [162]

Answer:

$2.50+$1.25 times M

Step-by-step explanation:

$10.75-$8.25=$2.50

$3.50-$2.25=$1.25

$2.50+$1.25=$3.75

As only one-time fee, we cancel out it, then only add on the per-month fee, which is $1.25 every month.

7 0
3 years ago
The comprehensive strength of concrete is normally distributed with μ = 2500 psi and σ = 50 psi. Find the probability that a ran
VARVARA [1.3K]

Answer:

The probability that the diameter falls in the interval from 2499 psi to 2510 psi is 0.00798.

Step-by-step explanation:

Let's define the random variable, X = "Comprehensive strength of concrete". We have information that X is normally distributed with a mean of 2500 psi and a standard deviation of  50 psi (or a variance of 2500 psi). In other words, X \sim N(2500, 2500).

We want to know the probability of the mean of X or \bar{X} that falls in the interval [2499;2510]. From inference theory we know that :

\bar{X} \sim N(2500, \frac{2500}{5}) \Rightarrow \bar{X} \sim N(2500,500)

Now we can find the probability as follows:

P(2499 \leq \bar{X} \leq 2510) \Rightarrow P(\frac{2499 - 2500}{500} \leq \frac{\bar{X} - 2500}{500} \leq \frac{2499 - 2500}{500} ) \Rightarrow\\\Rightarrow P(-0.002 \leq \frac{\bar{X} - 2500}{500} \leq 0.02 ) \Rightarrow P(-0.002 \leq Z \leq 0.02 )

Where Z \sim N(0,1), then:

P(-0.002 \leq Z \leq 0.02 ) \approx P(0 \leq Z \leq 0.02 ) = P(Z \leq 0.02 ) - P(Z \leq 0) \\P(0 \leq Z \leq 0.02 ) = 0.50798 - 0.5 = 0.00798

8 0
3 years ago
Other questions:
  • A debt greater than 20$ and less than 30$
    9·1 answer
  • Jesse is driving to a town that is 210 miles away with a speed of 60 miles per hour. If he makes no stops, how long will the tri
    5·2 answers
  • The population of a town is 6500 and is increasing at a rate of 4% per year.at this rate, approximately what will the towns popu
    13·1 answer
  • What is the solution of the equation
    7·1 answer
  • Number 22 and 23 ( the answer is wrong i need the correct one) 25 points !! tell me your work
    8·1 answer
  • A line with a slope of 4 passes through the point (2, 1). What is the equation of this line?
    6·2 answers
  • (5b-9)-3(8-2b) simplify the expressio
    5·2 answers
  • Please help I’ll give you brainleast and thanks
    11·2 answers
  • What is the solution set for - 6x - 14 ≤ 4?
    10·1 answer
  • The half life of a particular radioactive substance is 1 year. If yiu started with 50 grams of this substance, how much of it wo
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!