gabbieheart6421 gabbieheart6421

06-12-2017
Mathematics

contestada

The average of four numbers is 98. If three of the numbers are 86,87,and 91 what is the fourth number?

Respuesta :

sassqueenel1991 sassqueenel1991

09-12-2017

To find the average, you have to add all the numbers up and then divide by the amount of numbers you added together.

Equation: (86+87+91+x)/4=98
Solve for x:
86+87+91+x=98*4
264+x=392
x=392-264
x=128

The fourth number is 128

Answer Link

Otras preguntas

A random variable X follows the uniform distribution with a lower limit of 720 and an upper limit of 920. a. Calculate the mean and the standard deviation for t

NEED Help! Explain what thematic transformation is in a composition and give an example of its use in a composition.

Determine which car gets the better gas mileage. Car A or B Distance (miles) | 130 | 125 Gallons used | 8 | 9

While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one lower leg by contracting the muscles in the back of the upper

Jack has c pieces of candy. He gives away 10 of the pieces. Choose the expression that shows the number of pieces of candy Jack has left.

What is carbon dioxide used for in the chloroplasts of green plants? O A. To break down large food molecules O B. To make carbon dioxide and water 0 O C. To mak

At the grocery store, Victor has narrowed down his selections to 88 vegetables, 66 fruits, 66 cheeses, and 77 whole grain breads. He wants to use the Express La

Calculate the volume of a prism whose lengths is 25cm and whose cross-section is an equilateral triangle of 3cm

‼️Could somebody Please help ASAP The graph is in the picture ‼️The equation V=-32t+256 and the graph below describe the velocity V in feet per second of a ba

A 100 foot rope is cut into 2 pieces (a and b). Piece a is 2ft less than 5 times the length of piece b. (a) What is the system that models this situation ? (b)