geena82
geena82
08-12-2015
Mathematics
contestada
Find the value of y 7,8,2,5,y; mean=5
Respuesta :
taskmasters
taskmasters
08-12-2015
Value of y = 3
Mean is the average of all numbers. We must add up all the numbers and divide the sum by the numbers there are.
(7 + 8 + 2 + 5 + y) / 5 = 5
(22 + y) / 5 = 5
Perform Cross multiplication.
22 + y
=
5
5 1
(22 + y) * 1 = 5 * 5
22 + y = 25
Find y. Transfer 22 to the other side and change its sign.
y= 25 - 22
y = 3.
To check. Substitute y with its value.
(7 + 8 + 2 + 5 + y) / 5 = 5
(7 + 8 + 2 + 5 + 3) / 5 = 5
25 / 5 = 5
5 = 5
Answer Link
VER TODAS LAS RESPUESTAS ( 53+ )
Otras preguntas
How does frequency affect the speed of waves
A scientist is studying the effect on human health of bacteria that live in the human intestine. In her study, she found that the bacteria actually help the bod
Who drilled the first well in the East Texas Oil Field? A. Herbert Hoover B. Ross Sterling C. Columbus Marion Joiner D. Huey Long
Please tell me the answer I'm stuck for I promise I will give u a brainliest only if it is correct
During the first three presidential elections the president and the vice president were elected by _____.
what responsibility does or should the US bear in reducing civilian collateral damage? Can or should the US strike to kill are a major terrorist threat when the
Whats a alliteration to put in my speech about freedom?
Necesito _____________ para guardar todas las hojas de papel. una regla un bolígrafo una carpeta un borrador
Choose the phrase that best completes this sentence: Viajar en avión es ____________________. A.) más económico que el tren B.) muy incómodo C.) lo más cómodo D
Which weather event would most likely take place in the ecosystem highlighted on this map? Blizzard, because the ecosystem is very cold and wet Drought, becau
