son2miamischool
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In 1997 there were 31 laptop computers at Grove High School. Starting in 1998 the school bought 20 more laptop computers at the end of each year. The equation = 20 + 31 can be used to determine , the total number of laptop computers at the school years after 1997. What was the total number of laptop computers at Grove High School at the end of 2005? A. 160 B. 171 C. 191 D. 268

Respuesta :

laurenhaldeman
20 + 31 = 51 computers to start with

2005 - 1998 = 7 years

7 * 20 = 140 computers added

140 + 51 = 191

C.) 191 is your answer ☺

Total number of computers at Grove High School at the end of 2005 is option (C) 191

What is Arithmetic progression?

An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.

Number of computer at 1997 = 31 laptops

Number of computers buying at each end of the year = 20

Total number of computers at 2005  is

n=a+(n-1)d

n=9 years

a= 31 laptops

d= 20 laptops

Total number of computer at 2005 = 31+(9-1)20 = 191 computers

Hence, total number of laptop computers at Grove High School at the end of 2005 is option (C) 191

Learn more about Arithmetic progression here

https://brainly.com/question/20385181

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