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
Anna35 [415]
2 years ago
12

Three numbers A,B,C are in ratio of 2:3:5. If B=4.20, find A and C. Plz help

Mathematics
1 answer:
Bad White [126]2 years ago
5 0

Answer:

Step-by-step explanation:

A:B:C = 2:3:5

and B = 4.20

which 3x = 4.20

x = 1.4

A = 2 x 1.4

  = 2.8

C = 5 x 1.4

  = 7

A = 1.4, C = 7

You might be interested in
Ciara, an ornithologist, has 444 bird feeders at separate locations. She wonders if birds are equally likely to visit each of th
dybincka [34]

The expected count of visits is the mean or average visits to each feeder

The expected count of visits to the third feeder is 87.5

<h3>How to determine the expected count of visit?</h3>

The table of values is given as:

Feeder                 1   2    3   4

Observed visits 80 90 92 88

In this case, the null hypothesis implies that the visits to each feeder are uniformly distributed

So, the expected count is calculated using:

Expected count =Visits/Feeders

This gives

Expected count = 350/4

Evaluate the quotient

Expected count = 87.50

Hence, the expected count of visits to the third feeder is 87.5

Read more about chi square goodness of fit test at:

brainly.com/question/4543358

7 0
2 years ago
I NEED HELP NOW PLEASE
aleksandrvk [35]

Answer:

I think its 0.03 but I'm not a 100 percent sure

4 0
3 years ago
See attachment for the whole question.
KengaRu [80]

Using probability concepts, it is found that:

a) \frac{4}{13} probability of drawing a card below a 6.

b) \frac{4}{9} odds of drawing a card below a 6.

c) We should expect to draw a card below 6 about 4 times out of 13 attempts, which as an odd, it also 4 times for every 9 times we draw a card above 6, which is the third option.

------------------------------

  • A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

Item a:

  • In a standard deck, there are 52 cards.
  • There are 4 types of cards, each numbered 1 to 13. Thus, 4 \times 5 = 20 are less than 6.

Then:

p = \frac{20}{52} = \frac{4}{13}

\frac{4}{13} probability of drawing a card below a 6.

Item b:

  • Converting from probability to odd, it is:

\frac{4}{13 - 4} = \frac{4}{9}

\frac{4}{9} odds of drawing a card below a 6.

Item c:

  • The law of large numbers states that with a <u>large number of trials, the percentage of each outcome is close to it's theoretical probability.</u>
  • Thus, we should expect to draw a card below 6 about 4 times out of 13 attempts, which as an odd, it also 4 times for every 9 times we draw a card above 6, which is the third option.

A similar problem is given at brainly.com/question/24233657

7 0
3 years ago
The price of one gallon of milk has increased from $3.24 to $4.05. What us the percentage in increase?
dalvyx [7]
The percentage increase is 25%


8 0
3 years ago
Solve for X.<br> 3x+6/3 = 6<br> x=
Pachacha [2.7K]
X= 3x + 6 / 3 = 6 (im pretty sure)
7 0
1 year ago
Other questions:
  • If 3 quarts are divided into 16 players how many ounces each player get
    10·1 answer
  • Which category of two-dimensional shapes applies to all three of these shapes?
    9·2 answers
  • Arabella is trying to solve a quadratic equation using the quadratic formula and needs to find the values of a,b, and c she is g
    15·1 answer
  • Write an equation of the line that is parallel to the line y = -x + 4 and passes through the points 0, 10.
    8·1 answer
  • Uncle Buck used 5 cups of flour to make 8 dozen muffins. How many
    13·1 answer
  • Tickets cost $36 each. this is 60% of the cost of the regular price what is the cost of the regular price?
    11·1 answer
  • Direct variations need help
    12·1 answer
  • A spinner with sections Red, Blue, Yellow, and Green is spun 3 times. What is the
    15·1 answer
  • a town has a population of 70,230 in the year 2020. Over the next five years, 6556 people move into the town for work, but 4096
    12·1 answer
  • Find the number that is between 0 and 120, is even, is a multiple of 5 and is the result of multiplying one of the counting numb
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!