math

let s= the sum of all even numbers from 2 to 10 {including 2 and 10}
Let t= the sum of all odd numbers from 1 to 9 z{including 1 and 9.. find s-t

  1. 👍
  2. 👎
  3. 👁
  1. LOL

    2 - 1 = 1
    4 - 3 = 1
    ...............
    ...............

    10 - 9 = 1

    get it ?

    1. 👍
    2. 👎
  2. s = 2 + 4 + 6 + 8 + 10

    s = 30

    t = 1 + 3 + 5 + 7 + 9

    t = 25

    Then:

    s - t = 30 - 25

    s - t = 5

    Done!

    1. 👍
    2. 👎
  3. THANX THAT ANSWER WAS WELL EXPLAINED AN EVERYTHING

    1. 👍
    2. 👎
  4. LOL, yes 5*1 = 5 !!!

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Probability

    Compute 𝐄(𝑋) for the following random variable 𝑋: 𝑋=Number of tosses until getting 4 (including the last toss) by tossing a fair 10-sided die. 𝐄(𝑋)= Compute 𝐄(𝑋) for the following random variable 𝑋:

  2. Math

    The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6)

  3. math

    A number cube with sides labeled 1 through 6 is rolled two times, and the sum of the numbers that end face up is calculated. What is the probability that the sum of the numbers is 3?

  4. Math

    Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. P(sum=6) (1,6), (6,1) 1/36+1/36=2/36 b. P(sum=3) =1/36 c. P(sum is an odd number) 30/36 d. P(the two dice show same

  1. maths

    the sum of N positive integers is 19. what is the maximum possible product of these N numbers? thx. Nice problem. Let's look at some cases 1. N=2 clearly our only logical choices are 9,10 for a product of 90 It should be obvious

  2. high school (math)

    Match the mathematical expression with its translation. 1. the product of two numbers 2. y divided by x 3. six less than a number is y 4. x subtracted from y 5. the sum of two numbers is six 6. x minus y 7. the sum of x and y 8. x

  3. math

    I am thinking of 3 different whole numbers which have a product of 36. 5 more than the sum of the 3 numbers is a perfect square. what is the sum of my 3 numbers?

  4. Math

    1. If the product of 5 and the sum of 10 and a certain number is equal to 15, what is the number? 2. The sum of two consecutive counting numbers divided by their positive difference is 9. Find the larger numbers.

  1. Math

    the sum of 5 consecutive whole numbers is 2005. what is the sum of all the digits of these 5 numbers

  2. Algebra

    Find 5 consecutive whole numbers if it is known that the sum of the squares of the first 3 numbers is equal to the sum of the squares of the last 2 numbers.

  3. Math

    A student opened her math book and computed the sum of the numbers on two pages. Then, she turned to the next page and computed the sum of the numbers on those two facing pages. Finally, she computed the product of the two sums,

  4. Math

    Minimizing Sum: Find two positive numbers whose sum is 100 and the sum of whose squares is a minimum.

You can view more similar questions or ask a new question.