alearned123 alearned123

14-02-2018
Mathematics

contestada

The average of the first 8 numbers is 6. The average of the next 12 is 11. What is the overall average of the 20 numbers?

Respuesta :

wolf1728 wolf1728

14-02-2018

x / 8 = 6
x = 48

y / 12 = 11
y = 132

Total of the 20 numbers = 48 + 132 = 180
Average of these 20 = 180 / 20
= 9

Answer Link

Otras preguntas

which of the following best describes genomics? A. a mechanism used in DNA fingerprinting B. a sequence of mutant genes C. the study of cellular protein structu

Solve 5x^2 - 7x + 2 = 0 by completing the square. What is the constant added on to form the perfect square trinomial?

Solve. 12 – (2 × 3) A. 6 B. 12 C. 12(2) D. 23

What does expansion of states mean

The _______ were responsible for the forced migration of more people from Africa than any other colonial power. A. British B. Portuguese C. Dutch D. Spanish

Select the largest, most inclusive biological level from the following choices. A. Organ B. Molecule C. Tissue D. Cell

let f(x)=x^2+x+2 and g(x)=2x^2+5. find f(g(x)). Show each step of your work. Please help me!

Which of the following is not a role of the president? a. Chief Justice c. Chief Administrator b. Chief Diplomat d. Chief of State

Which of the following describes the BEST method for keeping the endocrine system healthy? A. exercise regularly B. eat a healthy and balance diet C. manage st

Which one of the following occurs during the light reactions of photosynthesis? A. Carbon dioxide fixation B. G3P production C. NADPH production D. Reduction o