Question

how many multiples of 7 are there between 100 and 200​

Answer 1

Answer:

Step-by-step explanation:

Multiples of 7 between 100 and 200 :

105 , ...... , 196

First term = a = 105

d = 7

a_n=a+(n-1)d

196=105+(n-1)(7)

196-105=(n-1)(7)

14 = n

Sum of multiples of 7 between 100and 200 :

Hence The sum of multiples of 7 between 100 and 200 is 1407

#Learn more:

Find the sum of all integers between 100and 300

Answer 2

Answer:

answer in attachment ☺️

Step-by-step explanation:

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