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
FinnZ [79.3K]
2 years ago
8

Lauren bikes 1 1/3 miles in 1/1/0 hour. What is her rate of speed in miles per hour?

Mathematics
1 answer:
Amanda [17]2 years ago
3 0

speed = distance / time

1 1/3 = 4/3

so

speed = (4/3) / (1/10)

= (4/3) * 10

= 40/3 mph

or 13 1/3 mph

Hope this helps!

You might be interested in
Sally is baking cupcakes for her birthday party.
Katena32 [7]

Answer:

Where's the rest of the question?

5 0
2 years ago
The number 0.0002 is 1/10 of
Ratling [72]

Answer:

I think it is 0.002

6 0
3 years ago
Read 2 more answers
A laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighings. Scale readings in repeated we
weqwewe [10]

Answer:

99% confidence interval for the given specimen is [3.4125 , 3.4155].

Step-by-step explanation:

We are given that a laboratory scale is known to have a standard deviation (sigma) or 0.001 g in repeated weighing. Scale readings in repeated weighing are Normally distributed with mean equal to the true weight of the specimen.

Three weighing of a specimen on this scale give 3.412, 3.416, and 3.414 g.

Firstly, the pivotal quantity for 99% confidence interval for the true mean specimen is given by;

        P.Q. = \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \bar X = sample mean weighing of specimen = \frac{3.412+3.416+3.414}{3} = 3.414 g

            \sigma = population standard deviation = 0.001 g

            n = sample of specimen = 3

            \mu = population mean

<em>Here for constructing 99% confidence interval we have used z statistics because we know about population standard deviation (sigma).</em>

So, 99% confidence interval for the population​ mean, \mu is ;

P(-2.5758 < N(0,1) < 2.5758) = 0.99  {As the critical value of z at 0.5% level

                                                            of significance are -2.5758 & 2.5758}

P(-2.5758 < \frac{\bar X - \mu}{\frac{\sigma}{\sqrt{n} } } < 2.5758) = 0.99

P( -2.5758 \times {\frac{\sigma}{\sqrt{n} } } < {\bar X - \mu} < 2.5758 \times {\frac{\sigma}{\sqrt{n} } } ) = 0.99

P( \bar X-2.5758 \times {\frac{\sigma}{\sqrt{n} } } < \mu < \bar X+2.5758 \times {\frac{\sigma}{\sqrt{n} } } ) = 0.99

<u>99% confidence interval for</u> \mu = [ \bar X-2.5758 \times {\frac{\sigma}{\sqrt{n} } } , \bar X+2.5758 \times {\frac{\sigma}{\sqrt{n} } } ]

                                             = [ 3.414-2.5758 \times {\frac{0.001}{\sqrt{3} } } , 3.414+2.5758 \times {\frac{0.001}{\sqrt{3} } } ]

                                             = [3.4125 , 3.4155]

Therefore, 99% confidence interval for this specimen is [3.4125 , 3.4155].

6 0
2 years ago
If Judy has 4 blouses and 5 skirts, how many different outfits of a blouse and skirt can she wear?
Aloiza [94]

Answer:

20

Step-by-step explanation:

i think but not fur shure

3 0
2 years ago
Read 2 more answers
If X = -6 and Y = 10 then find |x|-|3y|/|xy|
jek_recluse [69]

Answer:

(2)

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Giselle works as a carpenter and as a blacksmith. She earns \$20$20dollar sign, 20 per hour as a carpenter and \$25$25dollar sig
    13·1 answer
  • A toy basketball hoop for toddlers has a diameter of 10 cm. A regulation basketball hoop has a diameter of 46 cm. Determine the
    14·1 answer
  • How do I solve this with Substitution?
    11·1 answer
  • Find an equation of the line with the given properties slope=3 containing the print(-2,3)
    12·1 answer
  • Brian says that ABCD is a right triangle. Is he correct? (Do the numbers 1 point
    9·1 answer
  • Simply 3x+8/5+4x+10/5 completely
    7·1 answer
  • The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how man
    11·2 answers
  • 13. Diberi v = u + at, cari nilai t apabila v = v = 42 u=-8 dana - 5. <br>A.10<br>B.8<br>C.6<br>D.4​
    15·1 answer
  • The ratio of boys to girls in chorus is 2:5. If there are 42 students in the chorus how many are boys
    7·2 answers
  • Find the missing value
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!