fizakanwal91 fizakanwal91
  • 11-11-2017
  • Mathematics
contestada

The average of 5 numbers is 80. If one number is removed, the average become 50. Find the removed number?

Respuesta :

texaschic101
texaschic101 texaschic101
  • 11-11-2017
x / 5 = 80
x = 80 * 5
x = 400.......so the total of the numbers added was 400

(400 - x) / 4 = 50
400 - x = 50 * 4
400 - x = 200
-x = 200 - 400
-x = -200
x = 200 <== the removed number
Answer Link

Otras preguntas

list the sixth external parts of a computer system and identify which are output and which are input devices
write each repeating decimal as a fraction in simplest form: 1. 0.4 repeating 2. 0.13 repeating
log 9 (729) = ?, I know what logarithims are but dont quite understand this one
Given: ABCD is a kite AB=CB  AD=DC angleB=120  The circle has radius 3 Find: perimeter of ABCD
How I can solve this integral ∫ dx / akar 25 - 16x^2 ? I really need your help, thank you.
how to say "will you be my girlfriend" in Spanish
write the following measurements in longform: 1. 4.5x30 g 2. 1.99x10-8 cm
Two step equations with integers What is r/10+4=5. Please explain!
Matt Kaminsky bought a Volvo that is 33∕4 times as expensive as the car his parents bought. If his parents paid $8,000 for theirs, what is the cost of Matt's ca
how did miranda v arizona expand civil rights