karseaturtle karseaturtle
  • 02-10-2020
  • Mathematics
contestada

The mean of 4 numbers is 88.
What is the fourth number if three of the numbers are 80,95,and 85

Respuesta :

ZJSG09112007
ZJSG09112007 ZJSG09112007
  • 02-10-2020

Answer:

The fourth number is 92

Step-by-step explanation:

Let the fourth number be represented with x

Mean = Total sum of values / No of given values

Mean = 88

[tex]88= \frac{80+95+85+x}{4}\\ \\88=\frac{260+x}{4}\\ \\Cross\:Multiply\\\\88\times 4 = 260+x\\352= 260+x\\352-260=x\\92=x\\\\x=92[/tex]

Answer Link

Otras preguntas

KICKSTARTER: Similarity and Compare and contrast the two sentences. A strong northerly wind blew furiously. Furiously blew a strong northerly wind.
Which is the most widely used calendar in the world today? A. Chinese B. Gregorian C. Islamic D. Roman
free enterprise is also known as
why would body temperature be a negative feedback loop?​
otzi was 4'5" tall with blonde hair and blue eyes.true or false ​
what is the #1 motivation of the fairminded critical thinker?
which part of degestive canal is involved in absorption of food ​
Which sentence best completes this diagram?
Which logic gate produces an output of 1 only if both it’s inputs are 0?
What is the product of 7v 3 and 9v 15 in simplest radical form?