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
finlep [7]
2 years ago
10

Insert a digit to make numbers that are divisible by 15 if it is possible 89…0

Mathematics
1 answer:
CaHeK987 [17]2 years ago
7 0

Answer:

1 or 4 or 7

Step-by-step explanation:

The number is divisible be 15, that means it is divisible as by 5 and as by 3

(5*3=15).  The number is divisible by 5 if the last digit is 0 or 5.

In our case the last digit is 0 so the number is divisuble by 5 anyway.

The number is divisible by 3 if the sum of its digits is divisible by 3.

The sum of digits is 8+9 =17 .   17 is not divisible by 3, however 18,21 or 24 are divisible by 3

So instead ... 1 ( to get sum 18), or 4 ( to get sum 21) or 7 (to get sum 24) can be written

You might be interested in
Which is the slope of the line y=−3x+2?
telo118 [61]
Slope is m given the general formula y=mx+b.
For this equation slope is -2
6 0
3 years ago
Question is in the picture, please include step-by-step process.
Lemur [1.5K]
You would do the ((2 x 3.14) divided by four) x 3 To get the answer I will explain it if it’s right
4 0
2 years ago
Read 2 more answers
Candice is preparing for her final exam in Statistics. She knows she needs an 65 out of 100 to earn an A overall in the course.
sertanlavr [38]

Answer:

a. 72

b. 816

c. 570

d. 30

Step-by-step explanation:

Given the graph is a bell - shaped curve. So, we understand that this is a normal distribution and that the bell - shaped curve is a symmetric curve.

Please refer the figure for a better understanding.

a. In a normal distribution, Mean = Median = Mode

Therefore, Median = Mean = 72

b. We have to know that 68% of the values are within the first standard deviation of the mean.

i.e., 68% values are between Mean  Standard Deviation (SD).

Scores between 63 and 81 :

Note that 72 - 9 = 63 and

72 + 9 = 81

This implies scores between 63 and 81 constitute 68% of the values, 34% each, since the curve is symmetric.

Now, Scores between 63 and 81 =  

= 68 X 12 = 816.

That means 816 students have scored between 63 and 81.

c. We have to know that 95% of the values lie between second Standard Deviation of the mean.

i.e., 95% values are between Mean  2(SD).

Note that 90 = 72 + 2(9) = 72 + 18

Also, 54 = 63 - 18.

Scores between 54 and 90 totally constitute 95% of the values. So, Scores between 72 and 90 should amount to  of the values.

Therefore, Scores between 72 and 90 =  

= 570.

That is a total of 570 students scored between 72 and 90.

d. We have to know that 5 % of the values lie on the thirst standard Deviation of the mean.

In this case, 5 % of the values lie between below 54 and above 90.

Since, we are asked to find scores below 54. It should be 2.5% of the values.

So, Scores below 54 =  

= 2.5 X 12 = 30.

That is, 30 students have scored below 54.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site
tatiyna

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

8 0
3 years ago
What’s the standard form of this graph?
Anon25 [30]

Answer:

y = - |  (1/4)x - 1  | + 3

Step-by-step explanation:

if you are asking for the equation of the graph,

y = - |  (1/4)x - 1  | + 3

3 0
3 years ago
Other questions:
  • How many inches are in 5.25 feet
    11·2 answers
  • What precent of 20 is 30
    8·1 answer
  • Byron bought 3.6 cubic yards of soil for his yard. Each cubic yard of soil costs $23.50. How much did Byron spend?
    11·1 answer
  • A student solved an equation for the unknown value of n as 0 =0. Which set represents all of the possible values of n?
    9·1 answer
  • What is the center of a circle whose question is x2+y2-12x-2y+12=0?
    9·2 answers
  • In a certain county in​ 2013, it was thought that​ 50% of men 50 years old or older had never been screened for prostate cancer.
    5·1 answer
  • What number is three tenths less than 1?
    12·2 answers
  • How many modes, if any, does the group of data have?
    15·1 answer
  • There is a population of 10,000 bacteria in a colony. If the number of bacteria doubles every 240 minutes, what will the populat
    7·1 answer
  • The average cost of 3 books 3:2:5 is $50. How much does each book cost?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!