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
djyliett [7]
2 years ago
8

Find the smallest positive integer n such that the digit sum of n is divisible by 5, and the digit sum of n +1 is also divisible

by 5. Note: The digit sum of 1440 is 1+4+4+0 = 9.​
Mathematics
1 answer:
alisha [4.7K]2 years ago
6 0

Answer:

139,999

Step-by-step explanation:

If the digit sum of n is divisible by 5, the digit sum of n+1 can't physically be divisble by 5, unless we utilise 9's at the end, this way whenever we take a number in the tens (i.e. 19), the n+1 will be 1 off being divisble, so if we take a number in the hundreds, (109, remember it must have as many 9's at the end as possible) the n+1 will be 2 off being divisble, so continuing this into the thousands being three, tenthousands being 4, the hundred thousands will be 5 off (or also divisble by 5). So if we stick a 1 in the beginning (for the lowest value), and fill the last digits with 9's, we by process of elimination realise that the tenthousands digit must be 3 such that the digit sum is divisible by 5, therefore we get 139,999

You might be interested in
Which pair of data sets would most likely have no correlation?
kaheart [24]

Answer:

The first one is correct.

Hope this helps

Mark me brainliest if I'm right :)

7 0
2 years ago
Write the equation for the absolute value function graphed below
Jobisdone [24]

Answer:

y = 2|x+3| -2

Step-by-step explanation:

1) slope = rise/run= 4/2 =2 - for the right line

2) y = 2|x| initial graph

3) It  is moved 3 units left

y = 2|x+3|

4) It moved 2 units down

y = 2|x+3| -2

3 0
2 years ago
Use complete sentences to describe why it is valid to say that both a function and its inverse describe the same relationship.
Serhud [2]

Answer:

Step-by-step explanation:

A comparison between a function and its inverse would show that the domain and range of the original function swap. The domain of the function becomes the range of the inverse, the range of the function becomes the domain of its inverse. 

Looking at ordered pairs of the function and its inverse would look like this:

(2,4) on the original function becomes (4,2) on the inverse. 

While the graph of a function and its inverse are noticeably different an important thing to note is that it is merely a reflection across the line y=x. 

So even though they appear different you are looking at the same relationship just as y vs. x instead of x vs. y

I hope this helped you because i barley understood this myself.

Read more on Brainly.com - brainly.com/question/2834818#readmore

3 0
3 years ago
It is known that 60% of customers will need additional maintenance on their vehicle when coming in for an oil change. A random s
inn [45]

Answer:

the probability that more than 70% of customers in the sample will need additional maintenance is 0.0371

Step-by-step explanation:

From the information given:

we are to determine the probability that more than 70% of customers in the sample will need additional maintenance

In order to achieve that, let X be the random variable that follows a binomial distribution.

Then X \sim Bin(48, 0.6)

However 70% of 48 samples is

= 0.7 × 48 = 33.6 \simeq 34

Therefore, the required probability is:

= P(X> 34)

= \sum \limits ^{48}_{x=34} (^{48}_{x}) (0.6)^x(1 - 0.6)^{48-x}

= \dfrac{48!}{34!(48-34)!} (0.6)^{34} (0.4)^{48-34}

= 4.823206232 \times 10^{11} (0.60)^{34}(0.4)^{14}

= 0.03709524328

\simeq 0.0371

3 0
3 years ago
3. Joe has enough money to purchase up three video games that cost $25 each
zaharov [31]

Answer:

75$ i think lol I did not get the question

5 0
2 years ago
Read 2 more answers
Other questions:
  • R-1/5=r+6/10=??????????????????????
    5·1 answer
  • If a table and a bench is $1000 combined. The cost of the table is three times the cost of the bench. What is the cost of the be
    15·1 answer
  • 8 times what equals 48
    5·2 answers
  • What does the expression l∙w represent
    8·1 answer
  • This is due in 8 minutes help pls :/
    13·2 answers
  • 3<br> 42 ➗ (15-2)<br> I don’t know know to do this
    13·1 answer
  • Only thing I need to know is what to do for the x on y = x + 3 and y = x
    14·1 answer
  • Write the equation of the line that passes through the given points. (-1,16.5) And (0,6.5)
    8·1 answer
  • This question is too hard
    10·2 answers
  • Someone help please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!