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
joja [24]
2 years ago
8

In a bag of marbles. 4 are white, 5 are

Mathematics
1 answer:
irina1246 [14]2 years ago
3 0

Answer:

15/20 simplified is 3/4

Step-by-step explanation:

So a 3/4 chance or a 75% chance of not drawing a blue marble.

You might be interested in
Suppose both factors in a multiplication problem are multiples of 10. Why might the number of zeroes in the product be different
Lelu [443]

Answer:

Multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.

Step-by-step explanation:

Let the first five multiples of ten be

10*1= 10

10*2= 20

10*3=30

10*4=40

10*5= 50

Suppose we chose 20 and 50.

Now multiplying 20 with 50 we get

20*50= 1000

IF we count the total number of zeros in the factors ( 20 and 50) they are 2.

But the number of zeros in the product (1000) are 3.

This is because when we multiply 2 with 5 we get 10 which adds to the existing number of zeros ( i.e 2) and we get a total of 3 zeros.

And multiplying 10 with 50 we get

10*50= 500

IF we count the total number of zeros in the factors ( 10 and 50) they are 2.

But the number of zeros in the product (500) are also 2.

This is because when we multiply 1 with 5 we get 5 which does not add to the existing number of zeros ( i.e 2) and the total number of zeros remain the same.

Similarly multiplying 20 with 30 we get

20*30= 600

IF we count the total number of zeros in the factors ( 20 and 30) they are 2.

But the number of zeros in the product (600) are also 2.

This is because when we multiply 2 with 3 we get 6 which does not have a zero and the total  number of zeros remain the same as in the factors.

So we see that multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.

5 0
3 years ago
(23.01) In a randomized comparative experiment on the effect of dietary calcium on blood pressure, researchers divided 58 health
Paul [167]

Answer:

113.7-2.154\frac{9.1}{\sqrt{29}}=110.06    

113.7+2.154\frac{9.1}{\sqrt{29}}=117.34    

And the 96% confidence is given by (110.06; 117.34)

Step-by-step explanation:

Information given

\bar X=113.7 represent the sample mean

\mu population mean (variable of interest)

s=9.1 represent the sample standard deviation

n=29 represent the sample size  

Confidence interval

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

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

The degrees of freedom are given by:

df=n-1=29-1=28

The Confidence is 0.96 or 96%, the significance is \alpha=0.04 and \alpha/2 =0.02, and the critical value would be t_{\alpha/2}=2.154

Replacing the info we got:

113.7-2.154\frac{9.1}{\sqrt{29}}=110.06    

113.7+2.154\frac{9.1}{\sqrt{29}}=117.34    

And the 96% confidence is given by (110.06; 117.34)

5 0
3 years ago
Order these weights from lightest to heaviest 10 ounces 1 pond and 1 ounce
Alchen [17]
1 ounce, 10 ounces, 1 pound.

1 pound = 16 ounces
6 0
3 years ago
Which of the expressions are equivalent to the one below? Check all that apply. 13. (11 + 5)​
kondor19780726 [428]

Answer: 11+5=16

Step-by-step explanation: 14, 15, 16, 17 and 18

3 0
3 years ago
Please help guys please
puteri [66]

Answer:

Sales tax: $352.50

Final Cost: $5052.50

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Amy wants to carpet a room that is 12 feet by 8 feet. How many square yards of carpet will she need to complete the room?
    10·1 answer
  • In a random sample of 97 women at a company, the mean salary is $45,902 with a standard deviation of $3865. In a random sample o
    13·1 answer
  • Find the volume and surface area of the composite figure. Give your answer in terms of π.
    10·1 answer
  • Help pleaseee.... #5
    14·1 answer
  • a meteorologist measures the angle of elevation of a weather balloon with the ground as 41. A radio signal from the balloon indi
    10·2 answers
  • A(b - 4) + c(b - 4)<br>can someone help me please!!!​
    6·2 answers
  • Choose the method of pay that would result in the most earnings for one month on sales of 73,620
    6·1 answer
  • A corporation reported profits of approximately ​$600 million with approximately ​$11 million in revenues. Compare the profit to
    15·1 answer
  • A 3-gallon bottle of fabric softener costs $33.24. What is the price per quart?
    5·1 answer
  • Find positive and negative coterminal angles for -240
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!