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
agasfer [191]
3 years ago
8

Ron is tiling a countertop. He needs to place 54 square tiles in each of 8 rows to cover the counter. He wants to randomly place

8 groups of 4 blue tiles each and have the rest of the tiles be white. How many white tiles will Ron need?
Mathematics
1 answer:
serious [3.7K]3 years ago
7 0
The answer is 6.75 and your welcome
You might be interested in
Scores on a university exam are Normally distributed with a mean of 78 and a standard deviation of 8. The professor teaching the
mafiozo [28]

Answer:

Porcentage of students score below 62 is close to 0,08%

Step-by-step explanation:

The rule

68-95-99.7

establishes:

The intervals:

[ μ₀ - 0,5σ ,  μ₀ + 0,5σ] contains 68.3 % of all the values of the population

[ μ₀ - σ ,  μ₀ + σ]   contains 95.4 % of all the values of the population

[ μ₀ - 1,5σ ,  μ₀ + 1,5σ] contains 99.7 % of all the values of the population

In our case such intervals become

[ μ₀ - 0,5σ ,  μ₀ + 0,5σ]   ⇒  [ 78 - (0,5)*8 , 78 + (0,5)*8 ]  ⇒[ 74 , 82]

[ μ₀ - σ ,  μ₀ + σ]  ⇒ [ 78 - 8 , 78 +8 ]   ⇒  [ 70 , 86 ]

[ μ₀ - 1,5σ ,  μ₀ + 1,5 σ]  ⇒ [ 78 - 12 , 78 + 12 ]  ⇒ [ 66 , 90 ]

Therefore the last interval

[ μ₀ - 1,5σ ,  μ₀ + 1,5 σ]    ⇒  [ 66 , 90 ]

has as lower limit 66 and contains 99.7 % of population, according to that the porcentage of students score below 62 is very small, minor than 0,15 %

100 - 99,7  = 0,3 %

Only 0,3 % of population is out of   μ₀ ± 1,5 σ, and by symmetry 0,3 /2 = 0,15 % is below the lower limit, 62 is even far from 66 so we can estimate, that the porcentage of students score below 62 is under 0,08 %

6 0
3 years ago
In Joe's fish tank, there are 5 goldfish and 9 snails. How does the ratio 9:14 describe Joe's fish tank?
Natalija [7]
The answer is C, number of snails to the total number of animals
4 0
2 years ago
The alphabet is written here but some letters are missing
pantera1 [17]

Answer:

Wormhead

Step-by-step explanation:

First I put all of the letters in the alphabet and crossed out what letters you shown and then I put the missing letters together and the first thing that came to mind was "wormhead" sorry if its wrong...

6 0
3 years ago
The length of a rectangle plus its width is 36 cm. The area is 323 square cm. What are the length and width of the rectangle?
masya89 [10]

Answer:

length+ width=36

length×width=323

length=19cm

width=17cm

19×17=323

19+17=36

8 0
3 years ago
Pls help with number 5
nikdorinn [45]
A is 3 (5) + 4 (0)>24 this is false because 3 times 5 equals 15 plus 4 time 0 which is 0 is 15 and 15 is less than 24 not greater than 24
A. IS FALSE
b is 3 (4) + 4 (3)>24 this is false because 3 times 4 equals 12 and 4 times three equals 12
12 plus 12 equals 24 and 24 is equaled to 24 not greater than
B IS FALSE
c is 3 (-2)+4(9)>24
3 times -2 is -6 plus 4 times 9 which is 36 is 30 30 is greater than 24 so
C IS TRUE
4 0
3 years ago
Other questions:
  • There are 6 quarters in a jar Jill adds two quarters to the jar everyday which line liner equation represents the total amount o
    14·1 answer
  • Mr. Wells runs a telecommunications company. While going through the company's project records, he found that there were 8 engin
    11·1 answer
  • What is a drawback of getting college credit in high school?
    13·2 answers
  • Angelica painted 1/20 of her bedroom walls in 1/2 an hour. How long will it take Angelica to paint her whole bedroom?
    8·2 answers
  • Plz help and explain thanks!!!
    5·1 answer
  • -2 1/6 as a decimal i don’t know the answer
    14·1 answer
  • What is the slope intercept form of the equation of the line that passes through the points (9,5) and (4,1)
    14·1 answer
  • the amount of sales tax on a clothing purchase is directly proportional to the purchase price of the clothing. the sale tax on a
    6·1 answer
  • Antonio is planning a birthday party for his daughter. SkateWorld charges a flat fee of $50 plus $3 per child. Roller Land charg
    8·2 answers
  • A cake was cut into 20 equal pieces. daniel ate 3 pieces. what percent of the cake did daniel eat​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!