sarabader411 sarabader411

11-01-2022
Mathematics

contestada

The 15th term of an arithmetic series is
143 and the 31st term is 183.
a) Find the first term and the common
difference.
b) Find the 100th term of the series.

Respuesta :

salamsaid940 salamsaid940

11-01-2022

Answer:

-1557

Step-by-step explanation:

a+14d=143

a+12d=183

--------------------

2d= -40

d= -20

a=183+240=423

a(100th)= 423+99*-20=423-1980= -1557

I hope that help =)

Answer Link

Otras preguntas

Choose the inequality that represents the following graph.

Which of these is the correct translation for the following sentence?I would eat in a restaurant every day.O A. Yo como en un restaurante todos los días.OB. Yo

Let f(x)=logx. What is the average rate of change of f(x) from 2 to 3? Round to the nearest hundredth.

Give two examples of a large databases that might be used to help members of the public

which property was used to write the equation in step 4? 4 • x/4 = 4 • 18? A. addition B. subtraction C. multiplication D. division

22 is 40% of what number? A) 44 B) 55 C) 64 D) 88

HELP!!! SHOW WORK PLEASE.

(t)What is the difference between {2, 3} and {{2, 3}}?

Which factor plays the biggest role in the development of eating disorders?

Choose the inequality that represents the following graph.