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 graph shows the inequality ? The number line goes from negative 8 to positive 8. At 0, there is an open circle. The number line is shaded to the left of 0

Which one of George Washington's warnings laid out in his farewell address do you believe would be violated if we became involved in the Ukrainian/ Russian conf

HELP!! The table below shows the size of nine families selected at random from two neighborhoods in a large city: Family Size (in number of people) Neighborhood

what is the total volume of all four lockers if one side of a locker is two feet long

The conclusion of the Mexican-American War raised the stakes in the fight over the border with Canada. the Bear Flag Republic. the Missouri Compromise. slavery

Your employer tells you that your salary for your new job will be more than $314

can you help with this?

write a paragraph of 8 sentences about a fight you had with your friend !! urgent!!

Develop a healthy one day menu consisting of breakfast, lunch and dinner

Corn is a crop that grows best in soil that drains well. Which of the following soils is best suited to grow corn?