matthewyork2063 matthewyork2063

03-08-2018
Mathematics

contestada

If the average of 12 numbers is 14 and the average of 4 of those numbers is 18, what is the average of the other eight numbers?

Respuesta :

ciara180 ciara180

03-08-2018

(8 + X + Y)/3 = 12

multiply both sides of the equation by 3 to get 8 + X + Y = 36

subtract 8 from both sides of the equation to get X + Y = 28

So, the sum of the 2 missing numbers is 28

Answer Link

Otras preguntas

Which of the following is true regarding units of geologic time? a. Eras are divided into epochs; epochs are divided into periods. b. Epochs are divided into

What is the following sentence written as an expression?" Add the product of 3 and 6 to 4".

define the word joyous in terms of its suffix

One of the few groups to successfully gain political rights during the 1920's was- A-woman with the adoption of the nineteenth amendment B-religious groups with

Trace the flow of energy through a typical food chain (describing "what eats what"), including the original source of that energy and its ultimate form after us

A 2-kg object is moving horizontally with the speed of 4m/s. How much net force is required to keep the object moving at this speed in this direction?

of the 95 children in 6th grade 3/5 went to holiday parties how many students went to holiday parties in all

what are two 2-digit numbers that have a sum of 83?

Animal Behavior Role on Successful Reproduction of Plants

When floral design first emerged as an art form, which technique was emphasized?