askingALLthosQQ6144 askingALLthosQQ6144
  • 13-01-2021
  • Mathematics
contestada

An auditorium has 40 seats in its first row. Each row after has 2 additional seats than the row before. Find the number of seats in the 75th row.

Respuesta :

adioabiola
adioabiola adioabiola
  • 14-01-2021

Answer:

188 seats

Step-by-step explanation:

First row = 40 seats

Each row after = 2 additional seats

This is an arithmetic progressive question

Therefore,

First term, a = 40

Common difference, d = 2

Find the number of seats in the 75th row.

Number of seats in the 75th row = a + (n-1)d

= a + (75-1)d

= a + 74d

= 40 + 74(2)

= 40 + 148

= 188 seats

Number of seats in the 75th row = 188 seats

Answer Link

Otras preguntas

Calculate the accrued interest of the following bond on Feb 15 based on Actual/365 day count conventions provided last coupon was paid on Dec 31. ● ● ● Face val
what is the lcf of 4 and 5
What shows that Heidi's Grandmother was kind to her?
A rectangle has a perimeter represented by the expression 6w+7, where is the width of the rectangle? Which statement best describes this rectangle? The express
draw the net of cube and square pyramid​
Una finca rectangular tiene un perímetro de 2500 metros ¿cuánto mide el largo y el ancho de la finca si su largo tiene 50 metros más que el doble de su ancho?
What is an example of militarism being used in a good way
Who pays personal tax to the government​
please answer this need help​
WILL GIVE BRAINLIEST IF ANSWERED FAST!!!