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
Flura [38]
2 years ago
7

Том и Эми установили будильники на своих телефонах на 6:45. Оба сигнала тревоги звучат одновременно в 6.45. Будильник Тома звучи

т каждые 9 минут. Будильник Эми звучит каждые 12 минут. В какое время оба будильника в следующий раз сработают вместе?
ПОМОГИТЕ ПОЖАЛУЙСТА​
Mathematics
1 answer:
Debora [2.8K]2 years ago
8 0

Answer:

36 минут спустя в 7:21

это проблема LCM, поэтому вот как ее решить.

Том звучит через 9, 18, 27, 36 минут после первоначального звучания.

Звуки Эми в 12, 24, 36 минут

Итак, в 7:21, через 36 минут после того, как они ушли, и Том, и Эми проснулись, и они оба опоздали.

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

Translation

36 minutes later at 7:21am

this is a LCM problem so this how to solve it.

Toms sounds at 9, 18, 27, 36 minutes after it initially sounds

Amy’s sounds at 12, 24, 36 minutes

so at 721am 36 minutes after they went off both Tom and Amy when they woken up,they were both late.

You might be interested in
A pair of shoes costs $52.99 and the sales tax is 8% use the fromula c=p+rp to find the total prices
Molodets [167]
The total will be 57.23. Because tax would be 4.24 and add it to 52.99 and you get 57.23.
5 0
3 years ago
I can’t figure this out, What is 9/16-1/3?
Dvinal [7]

Answer:

1/4

Step-by-step explanation:

5 0
3 years ago
Which of the following parabolas opens down?
iris [78.8K]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
Which of the following graphs represents a transformation from y = x2 by reflecting over the x-axis and shifting only along the
nikitadnepr [17]

Answer:

659_₹/good your friends and friends happily ever before 4890₹/

6 0
3 years ago
A manufactured product has a length that is normally distributed with a mean of 12 cm. The product will be unusable if the lengt
Sav [38]

Answer:

a) σ  = 0,1612

b) P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

Step-by-step explanation:

NOTE: I assume the unusable length s 11,5 and less

a) For a normal distribution, the probability of P = 0,01 corresponds to z(score) =  -3,1 then:

- 3,1 = ( X - μ₀ ) / σ

- 3,1 = (11,5 - 12 )/ σ

-3,1 = - 0,5 / σ

σ  = 0,1612

b) If σ = 0,1612

P [ 11,75 < X < 12,35]

z₁ (score)  = ( 11,75 - 12 ) / 0,1612

z₁  = - 0,25/ 0,1612

z₁  = -1,55

From z table  P [ 11,75 < X] = 0,0606

z₂ (score) = ( 12,35 - 12) / 0,1612

z₂ = 0,35 / 01612

z₂ = 2,17

From z table  P [ X < 12,35] = 0,9850

Finally P [ 11,75 < X < 12,35] = 0,9850 -  0,0606

P [ 11,75 < X < 12,35] = 0,92,44   or    92,44 %

5 0
3 years ago
Other questions:
  • In a mall,1/15 of the stores sell shoes. There are 180 stores in the mall. How many of the stores sell shoes.
    5·2 answers
  • If B-16 45 and C-13, then find a
    14·1 answer
  • An astronomer knows the distances from herself to stars A and B as well as the distance between them.
    10·1 answer
  • Which of the following is always true? Choose the correct answer below.
    11·1 answer
  • Expected value is
    15·1 answer
  • Factor completely: x2 + 10x + 24 (Which is the right answer?)
    12·1 answer
  • 78.2 divided by 0.2 =
    15·1 answer
  • What is 2000 - 296 equal ​
    9·2 answers
  • An airport has two long term parking lots. the cost to park,y, in each lot for x days is shown in the tables
    12·1 answer
  • F(x) = (x+3)(2x²+5)<br> Find the derivative
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!