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
Korolek [52]
3 years ago
10

80 % of _ games is 32 games

Mathematics
2 answers:
ddd [48]3 years ago
8 0
40 games is the answer you're looking for
andrew-mc [135]3 years ago
7 0
80% × x = 32
.80x = 32
x = 32/.8
x = 40
You might be interested in
If job growth in your state is projected to be 2 percent and you have
user100 [1]

Answer:

5,500,000

Step-by-step explanation:

I'm not sure if this is correct but how I got that was I divided 11,000,000 by 2. I'm sorry if it's incorrect

5 0
2 years ago
Read 2 more answers
A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at th
Valentin [98]

Answer:

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=12.8

The sample deviation calculated s=4.324 \approx 4.3

12.8-4.604\frac{4.324}{\sqrt{5}}=3.896    

12.8+ 4.604\frac{4.324}{\sqrt{5}}=21.704    

So on this case the 99% confidence interval would be given by (3.896;21.704)    

Step-by-step explanation:

Data: 10,9,20,13,12

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=12.8

The sample deviation calculated s=4.324

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=5-1=4

Since the Confidence is 0.99 or 99%, the value of \alpha=0.01 and \alpha/2 =0.005, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,4)".And we see that t_{\alpha/2}=4.604

Now we have everything in order to replace into formula (1):

12.8-4.604\frac{4.324}{\sqrt{5}}=3.896    

12.8+ 4.604\frac{4.324}{\sqrt{5}}=21.704    

So on this case the 99% confidence interval would be given by (3.896;21.704)    

6 0
3 years ago
Dividing fractions maths
Sergeu [11.5K]
When dividing fractions, flip the 2nd one around and then multiply across:

a) 3/11 / 3/11 = 3/11 x 11/3 = 33/33 = 1

b) 9/10 / 3/5 = 9/10 x 5/3 = 45/30 = 1 15/30 = 1 1/2

7 0
3 years ago
Read 2 more answers
A horse fills a hot tub at a rate of 3.54 gallons per minute. How many hours will it take to fill a 258 gallon hot tube
Step2247 [10]
Approximately 1.22 hours.
258/3.54≈72.9. 72.9/60≈1.22.
7 0
3 years ago
How do you write 1.801 as a percentage
Norma-Jean [14]

Answer:

180.1%

Step-by-step explanation:

As a rule, when converting from a number to a percentage, you multiply by 100. Therefore, 1.801 = 180.1%

8 0
2 years ago
Other questions:
  • What is the purpose of testing whether β1 = 0? The purpose of testing whether β1 = 0 is to determine whether or not the mean of
    8·1 answer
  • How many points need to be removed from this graph
    12·2 answers
  • Which is the best strategy to solve this problem?
    7·2 answers
  • What is the answer to to the question -3 > X/-7
    10·1 answer
  • If Sophia's score was 76 points, what was her percentile rank in the class?
    5·1 answer
  • Which polynomial is equivalent to (x^3+2x^4+5x^5-2x-1)-(-7x-x^2+9x^3+2x^4)?
    9·1 answer
  • What's the inverse of a 2x4 matrix?
    7·1 answer
  • a model doll house is 3.25 feet long. the real house is 30 yards long. what is the unit rate that describes the relationship of
    10·1 answer
  • Given that f(x) = x²-1,<br> a) Find f(5)<br> b) Find f-'(x)<br> c) Find f-'(8)
    5·1 answer
  • -5= -4 + b<br> solve for b
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!