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
krek1111 [17]
3 years ago
9

Is the number even or odd?2018−2017+2016−2015 + . . . +2–1

Mathematics
1 answer:
scoundrel [369]3 years ago
5 0

Answer:

It is the odd number 1009

Step-by-step explanation:

Notice that this problem involves the addition of a number "1" per consecutive pair (a number minus the integer that immediately precedes it), so it adds "1" (one) every couple of consecutive numbers.

2018 - 2017 = 1

2016 - 2015 = 1

...

4- 3 = 1

2 - 1 = 1

That means it is the addition of 2018/2 = 1009 numbers "1". This clearly results on the number 1009, which is an odd number.

You might be interested in
Josslyn has nickels and dimes in her pocket. The number of nickels is three more than seven times the number of dimes let d repr
vfiekz [6]
7d+3Explanation

to solve this we need to translate into math terms, so

Step 1

a) let d represents the number of dimes

let n represents the number of nickles

so

re write the expressions

\begin{gathered} number\text{ of dimes=d} \\ seven\text{ times the number of dimes = 7d} \\  \end{gathered}

The number of nickels is three more than seven times the number of dimes in other words you have to add 7 to seven times the number of dimes to obtain the number of nickles

hence

n=7d+3

therefore , the expression for the number of nickles is

7d+3

I hope this helps you

3 0
1 year ago
F divided by 28 equal 24
BabaBlast [244]
You can translate to:

F ÷ 28 = 24

F/28 = 24          Cross Multiply

F = 28 * 24

F = 672

6 0
3 years ago
Read 2 more answers
MARKING BRAINLY ASAP
lawyer [7]

Answer:

A is your answer

Step-by-step explanation:

A

7 0
3 years ago
Read 2 more answers
What is the solution in both interval and graph form of "x>2 or x>-1"?​
tangare [24]

Answer:

Step-by-step explanation:

2>-1

so solution is x>2

6 0
3 years ago
What is the time that is 9 hours and 40 minutes before 4:25 A.M.
sergey [27]
4:25A.M.-9h=7:25P.M.\ yesterday\\\\40min=25min+15min\\\\7:25P.M.-25min=7:00P.M.\\\\7:00P.M.-15min=\boxed{6:45P.M.\ yesterday}
4 0
3 years ago
Read 2 more answers
Other questions:
  • An employee compiled sales data for a company once each month. The scatter plot below shows the sales (in multiples of $1000) fo
    13·2 answers
  • One half a number decreased by 3 is 21 what is the equation for this statement
    5·2 answers
  • Which statement be describes the rotation ?
    6·2 answers
  • Solve for f.<br>-f + 2 + 4f = 8 - 3<br>f=​
    12·2 answers
  • What is the circumference of a circle with a diameter of 6.2cm?
    9·1 answer
  • Find the amount of money in the account after 6 years at 4% APR compounded monthly if $18000 were inititally deposited
    12·2 answers
  • HEEEEELLLPPP PLEEEAASSEEE
    9·1 answer
  • A turtle pack that normally sells for $39 is on sale for 33% off. Find the
    9·1 answer
  • TWO QUESTIONS BELOW:
    7·1 answer
  • The mean number of hours that American women who worked outside of the home per week was 34.6 hours with a standard deviation of
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!