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

Name two different numbers that round to 8.21 when rounded to the nearest hundredth

what is the expanded form of 0.78

how were the social classes of sumer organized ??

Which Pair Of Numbers Is Relatively Prime? A. 28 and 35 B. 10 and 25 C. 14 and 49 D. 32 and 45

What was the controversy surrounding the creation of the Transportation Safety Administration? The agency was not monitoring airport security carefully enough a

How to differentiate y=x^ln7 ?

Use Constitutional Convention in a sentence to show you understand what it means.

The table shows the number of Salvador has read. Find the ratio of mystery books to the total. Explain it's meaning. (look at the picture of the table)

Express the ratio or rate as a fraction in simplest form 35 out of 149

-5g+2.3= -18.8 im in seventh grade and can't figure out this equation... ughhh