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
GalinKa [24]
3 years ago
11

What is 3 2/7 x 2 4/5 (Answer with a mixed number in simplest form) Thankyou!!

Mathematics
2 answers:
Lilit [14]3 years ago
8 0
3 2/7 x 2 4/5
= 23/7 x 14/5
= 23/1 x 2/5
= 46/5
= 9 1/5
SCORPION-xisa [38]3 years ago
7 0

Answer:

9 1/5

Step-by-step explanation:

3 2/7 * 2 4/5

Change to improper fractions

( 7*3+2)/7  * ( 5*2+4)/5

23/7 * 14/5

Rewriting

14/7 * 23/5

2 * 23/5

46/5

Changing back to a mixed number

5 goes into 45 9 times with 1 left over

9 1/5

You might be interested in
Find the area of the composite figure 12 yd height 10 yd base​
Cloud [144]

Answer:

120 yd^2

Step-by-step explanation:

1. 12x10= 120

2. 120 yd ^2

3 0
3 years ago
Select the correct answer.
erastovalidia [21]

Answer:

here

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Which of the following is an example of the atmosphere inracting with the biosphere
Paha777 [63]

Answer:

rain (hydrosphere) falls from clouds in the atmosphere to the lithosphere and forms streams and rivers that provide drinking water for wildlife and humans as well as water for plant growth (biosphere)

Step-by-step explanation:

7 0
2 years ago
542 using base ten blocks
zhuklara [117]
5 big cubes 4 longs and 2 small cubes
7 0
3 years ago
Read 2 more answers
A small town has 2000 families. The average number of children per family is mu = 2.5, with a standard deviation sigma = 1.7. A
Nikitich [7]

Answer:

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

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".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

6 0
3 years ago
Other questions:
  • What is -7x - 9 = - 93
    5·2 answers
  • Draw 2 lines to cut each triangle into the given shapes. 1 triangle and 2 trapezoids
    15·1 answer
  • Solve: -3(3x+1)-41>-5(-2x+4)+5x
    5·1 answer
  • Amy is sewing some pants for herself.
    12·1 answer
  • Tommy can ride his bicycle 4.5 miles in 15 minutes how many miles can he ride in 75 minutes
    6·2 answers
  • A school will have a fall festival if at least 40% of the 500 students plan to attend how many students must agree to attend in
    14·1 answer
  • People who eat lots of fruits and vegetables have lower rates of colon cancer than those who eat little of these foods. Fruits a
    10·1 answer
  • You purchase 3 items for $4.23. About how much did you spend?<br> $15<br> $10<br> $12<br> $13
    6·1 answer
  • pls answer this but dont take my points if your not gonna answer it correctly or atleast a smart answer
    11·2 answers
  • A new string is chosen and knotted with all the other strings to create a second row. This process is repeated until there are e
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!