01-08-2020
Mathematics

contestada

Find the 20th term from the last term of the AP:3,8,13,..., 253.

Respuesta :

MathPhys MathPhys

01-08-2020

Answer:

158

Step-by-step explanation:

The sequence is 3, 8, 13, ..., 253.

Going backwards, it's 253, 248, 243, ..., 3.

First term is 253, common difference is -5.

The nth term is:

a = 253 − 5(n − 1)

The 20th term is:

a = 253 − 5(20 − 1)

a = 158

Answer Link

Otras preguntas

Are the ratios 12:9 and 6:3 equivalent?

Unrestricted submarine warfare refers to Germans attacking ships in American waters. True False

A cube has a volume of 125 cubic inches. What is the volume of the largest sphere that will fit in the cube?

Why do you suppose utterson is concerned about the fact that hyde has a key to the residence?

Identify two factors that have a product of 1/12

Lincoln saves 40% of every paycheck. His paycheck last week was $660. How much did Lincoln save last week?

What are the four countries of Lapland? ____________ ____________ ____________ ____________

2x + 3y = 9 -2x + 2y = 6 The y-coordinate of the solution to the system shown is _____. A) 3 B) 5 C) 9 D) 15

Whenever anything moves, it has _____ energy. chemical heat mechanical

What destruction did the atomic bomb do to Hiroshima?