mahaaaaaam mahaaaaaam

01-07-2017
Mathematics

contestada

If S is the sum of the integers from 51 to 150 and T is the sum of the integers from 151 to 250,what is the value of S-T

Respuesta :

mreijepatmat mreijepatmat

01-07-2017

Here there are 2 an Arithmetic progression and the sum of consecutive integers S= (1st term + last term) x (1/2) (the number of terms:
:
S= (51+150)x(100/2) = 10,050

T= (151+250)X(100/2) = 20050

S - T = 10,050 - 20050 = - 10,000

Answer Link

Otras preguntas

Kansas entered the union as a undeclared, slave, or free state?

Complete the square 3x^2+12x-1 show working

How do you write a word form for 4.293

why did general MacArthur address congress after he was fired.?

how to write 430, 290, 100 in expanded form?

how is the shape of an enzyme related to its function?

Emma and jamie used base-ten blocks to show that 40 is one-tenth of 400

What does it mean if the hundred digit of my number is less than tens digit. The ones digit is greater than the tens digit. What could my number be?

Name one reason why Sevilla, Spain is famous

30% of a number is one-thirtieth of x, find the initial expression as a fraction of x