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
hoa [83]
3 years ago
5

Janet and Jack are walking in a two-day event to raise money for charity. Janet asks a friend for a $7.50 donation, plus $0.10 f

or each mile she walks. Jack asks a friend for a $5.50 donation, plus $0.15 for each mile he walks. At how many miles of walking would Janet and Jack collect the same amount of money?
Mathematics
1 answer:
il63 [147K]3 years ago
3 0

Answer:

Step-by-step explanation:

A. 40

B. 28

C. 44

D. 25

You might be interested in
A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 300 milliliters
PilotLPTM [1.2K]

Answer:

e. 0.0072

Step-by-step explanation:

We are given that a bottling company uses a filling machine to fill plastic bottles with cola. And the contents vary according to a Normal distribution with Mean, μ = 298 ml and Standard deviation, σ = 3 ml .

 Let    Z = \frac{Xbar - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)  where, Xbar = mean contents of six randomly

                                                                     selected bottles

                                                          n = sample size i.e. 6    

So, Probability that the mean contents of six randomly selected bottles is less than 295 ml is given by, P(Xbar < 295)

 P(Xbar < 295) = P( \frac{Xbar - \mu}{\frac{\sigma}{\sqrt{n} } } < \frac{295 - 298}{\frac{3}{\sqrt{6} } } ) = P(Z < -2.45) = P(Z > 2.45)

Now, using z% score table we find that P(Z > 2.45) = 0.00715 ≈ 0.0072 .

Therefore, option e is correct .

7 0
3 years ago
If you write 0.00002836 in scientific notation, what exponent completes the notation?
rosijanka [135]
2.836x10^-5 is going to be your answer
6 0
3 years ago
Which statement holds true for a skewed histogram showing a distribution of the weights of students in a class?
Vanyuwa [196]
Among the choices, the statement which describes a skewed histogram showing a distribution of the weights of students in a class is:

<span>"The nature of the skew can be verified by the position of the mean with respect to the mode."

The histogram is skewed to the right if the mean is less than the mode and the histogram is skewed to the left if the mean is more than the mode. </span><span />
8 0
3 years ago
Is 5,577 + 617,667 positive or negative?
raketka [301]
I’m pretty sure that’s a positive :0
7 0
2 years ago
Read 2 more answers
. A boat traveled 300 miles in 15 hours. What<br> rate did the boat travel in miles per hour?
Gala2k [10]

Answer:

20

Step-by-step explanation:

divide 300 by 15 and there's your answer

8 0
3 years ago
Other questions:
  • Rewrite 4 6/7 as an improper fraction.<br><br> sorry this is the correct question
    13·2 answers
  • Functions<br> F(1) if f(x)=x+3
    10·1 answer
  • If θ is an angle in standard position that terminates in Quadrant III such that cosθ = -3/5, then tan =θ/2 _____.
    8·1 answer
  • So I'm not good with story problems and im trying to figure this one question out. How do I format it?​
    9·1 answer
  • 5x+2y= -11 and 2x+2y=5 solve using elimination<br>​
    8·1 answer
  • What measurement is equivalent to 6 kilograms?
    10·1 answer
  • The area of the rectangular garden shown is 19.5 square meters. How many meters of fencing are needed to go around the​ garden?
    6·1 answer
  • Solve for X<br><br>show me what steps to do for this one​
    12·2 answers
  • In Richmond, Chloe ordered $40 worth of sushi. She knew that when the bill came, she would need to pay Richmond sales tax of 5%
    11·1 answer
  • A TV has a listed price of $900.99 before tax. If the sales tax rate is 6.75%, find the total cost of the TV with sales tax incl
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!