ndeatsch ndeatsch
  • 13-09-2017
  • Mathematics
contestada

you get a 90%, 75% and 80% on your practices. There is one more practice before the test. What score do you need on the fourth practice to get an average of 85%?

Respuesta :

texaschic101
texaschic101 texaschic101
  • 13-09-2017
(90 + 75 + 80 + x) / 4 = 85
(245 + x) / 4 = 85
245 + x = 85 * 4
245 + x = 340
x = 340 - 245
x = 95 <=== u need a 95
Answer Link

Otras preguntas

Brian bought 3 sodas and 2 bags of chips and paid $6.50. Lisa bought 1 soda and 2 bags of chips and paid $3.50. What's the price of the chip bag
Fact Bank:A. Parliament passes the sugar Act in 1764. B. Following the Boston Tea Party, the Intolerable Acts pass a year later. C. Two years later, the Townshe
given g(x) =3x-3 solve for x when g(x) = 6
Which of the following best describes "minutemen"? *
solve the equation for x: 3(m+7)=6(m+2)
Which is the graph of the function f(x) = one-halfx2 2x – 6?
que colores y otros elementos caracterizan a los letreros de advertencia
the maximum number of individuals a habitat can support is called its
50 PONITS AND BRAINLIEST :)​
NEED THIS ASAP!For this assignment, you will visit the website Separation of Powers in Action – U.S. v. Alvarez. You will then use facts from the section called