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
zalisa [80]
3 years ago
13

One half Of a number added to two thirds Of The number Is 21 . Find The number.

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0


18. 1/2 of 18 is 9. 1/3 is 6. 6+6+9 = 21


elena-s [515]3 years ago
4 0
The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21
You might be interested in
A farmer grows a new variety of pumpkin, hoping to have
azamat

Answer:

C

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A service center receives an average of 0.6 customer complaints per hour. Management's goal is to receive fewer than three compl
True [87]

Answer:

0.18203 = 18.203% probability that exactly four complaints will be received during the next eight hours.

Step-by-step explanation:

We have the mean during a time-period, which means that the Poisson distribution is used to solve this question.

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

A service center receives an average of 0.6 customer complaints per hour.

This means that \mu = 0.6h, in which h is the number of hours.

Determine the probability that exactly four complaints will be received during the next eight hours.

8 hours means that h = 8, \mu = 0.6(8) = 4.8.

The probability is P(X = 4).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 4) = \frac{e^{-4.8}*4.8^{4}}{(4)!} = 0.18203

0.18203 = 18.203% probability that exactly four complaints will be received during the next eight hours.

5 0
3 years ago
Vhich of the following is a true statement about skew lines?
krok68 [10]

Answer:

A. Skew lines cannot lie in the same plane.

Step-by-step explanation:

(*Which)

Skew Line Definition (from Wikipedia): <em>"In three-dimensional geometry, skew lines are two lines that do not intersect and are not parallel." </em>-Wikipedia

<em>"Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions."</em> -Wikipedia

Skew lines cannot lie in the same plane so A is correct and C is incorrect.

B and D are incorrect because our friend Wikipedia just said it was incorrect.

5 0
3 years ago
The first four terms of a geometric sequence are 27, x, 3, 1. find the value of x
Vikki [24]

Answer:

9

Step-by-step explanation:

7 0
3 years ago
What is the area and perimeter of this triangle
Fynjy0 [20]

Answer:

P= 221cm

A=2044

Step-by-step explanation:

Perimeter : add all sides so 73+92+56= 221 cm

Area: 73(56/2)= 2044

7 0
3 years ago
Read 2 more answers
Other questions:
  • ida goes to the store to buy groceries. To pay for the groceries, she slides the card through a card reader and puts in a specia
    7·2 answers
  • If 160 is divided by x, then the remainder is 4. What is the remainder when 315 is divided by x?
    11·1 answer
  • Help PLSSSSS BRAINLIST Rate of change on both of them pls look down below
    14·1 answer
  • There were 5 seats on the bus. In how many ways could the seats be occupied if there were four children?
    10·1 answer
  • Write 3 and16/25 as a percent
    13·1 answer
  • Calculate the average rate of change of the function g over the interval-2 A)-4<br> B)-1<br> C)0<br> D)1
    10·1 answer
  • Write each expression in standard notation.
    14·1 answer
  • Simplify 12 to the power of 3 over 12 to the power of 7
    8·1 answer
  • Select the correct answer. Consider these functions: f(x)=x+1 g(x)=2/x.Which polynomial is equivalent to (f ◦ g)(x)?
    12·1 answer
  • Op + 8 Part B If the jumping price is $18.50 per hour and the fee for socks is $3.25, what is the total cost, in dollars, for th
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!