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
White raven [17]
3 years ago
6

An integer from 300 through 780, inclusive is to be chosen at random, find the probability that the number is chosen will have 1

as at least one digit.​
Mathematics
1 answer:
exis [7]3 years ago
6 0

Answer:

  • 93/481

Step-by-step explanation:

<u>Total number of integers from 300 through 780, inclusive:</u>

  • 780 - 299 = 481

<u>Number of integers with at least one of digit 1:</u>

  • Hundreds - 0,
  • Tens - 5*10 = 50 (31th, 41th, 51th, 61th, 71th)
  • Units - 4*9 + 7 = 43 (300 till 699 and 700 till 780)
  • So in total 50 + 43 = 93

<u>The probability is:</u>

  • P = favorable outcomes/total outcomes = 93/481
You might be interested in
How do you know when a sequence is arithmetic vs. geometric?
stellarik [79]

Answer:

An arithmetic sequence is a sequence with the difference or pattern between two consecutive terms constant. 

A geometric sequence is a sequence with a ratio between two consecutive terms constant. 

8 0
4 years ago
A family travels, by plane, five hundred miles from their city to a beach town. Then they take a taxi from the airport to the ho
Juliette [100K]
To work out how many miles the distance from the airport to the beach, we can use 1km ≈ 0.62 miles
To get from 20km from 1km, we multiply by 20
If we do the same to 0.62
0.62 x 20 = 12.4 miles
Next step is to add this on to the 500 miles they travelled by plane
500 + 12.4 = 512.4 miles

4 0
3 years ago
Read 2 more answers
Emily wants to hang a painting in a gallery. The painting and frame must have an area of 31 square feet. The painting is 5 feet
seropon [69]
Area=legnth times width=31
the frame must go around the frame with equal legnth, x
so
the total area (meaning the frame +picture) is 5+x by 6+x
31=(5+x)(6+x)
expand
31=30+11x+x^2
minus 31 both sides
0=-1+11x+x^2
x^2+11x-1=0

answer is third one
6 0
3 years ago
Read 2 more answers
The population of a small town in central Florida has shown a linear decline in the years 2001-2012. In 2001 the population was
earnstyle [38]

Answer:

Step-by-step explanation:

First of all, to keep our numbers manageable, we are going to let year 2001 = 0 so year 2012 = 11.  The coordinates that result from these years/population numbers are (0, 22200) and (11, 13950). Since this linear, we can plug those 2 coordinate pairs into the slope equation to find the rate at which the population is decreasing in people per year:

m=\frac{13950-22200}{11-0}=\frac{-8250}{11}=-750\frac{people}{year} That means that the town is losing people at the rate of 750 per year. We can use that slop along with one of the coordinate points to write the linear equation representing this situation:

y-22200=-750(x-0) and

y = -750x + 22200. That answers part A.

Now for B we need to find y when x = 13 (remember we let year 2001 = 0, so year 2014 = 13):

y = -750(13) + 22200 so

y = 12450 people in the year 2014

6 0
3 years ago
This is a number decreased by 18.8 is 77.2
Leno4ka [110]

18.8 + 77.2 = 96?

I hope I understood the question and that this helps :>


8 0
3 years ago
Read 2 more answers
Other questions:
  • A student saves $20 per week from his part-time job. How much will he have saved in 21 weeks?
    14·2 answers
  • jill fish weighted 8 times as much as her parakeet together pets weighted 63 ounces how much does the fish weight
    12·2 answers
  • How many types of triangles are there?​
    13·2 answers
  • 1/3(2b + 9) = 23(b + 9/2)
    10·1 answer
  • Complete the ratio table<br>1 3 5 7<br>7 ​
    5·2 answers
  • Sin(θ-30) = cos(θ)<br>solve for θ.​
    12·1 answer
  • Does anyone know what this is?
    10·2 answers
  • Does this situation involve a permutation or a combination, then solve? Selecting 4 out of 50 minions to compete in a dancing co
    8·1 answer
  • The component form of a vector indicates the changes in x and y from the
    5·1 answer
  • PLEASE HELP ITS URGANT WILL MAKE BRAINLIEST PLEASE HELP MEEE
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!