singlesmiles singlesmiles

16-10-2015
Mathematics

contestada

The average of 6 numbers is 7. When a 7th number is addedThe average of all numbers is 0. What is the seventh number?

Respuesta :

16-10-2015

-- The average of 6 numbers is 7.
    So those 6 numbers must add up to 42.

-- If one more number results in an average of zero,
   the new number must be -42 .
   Then all 7 numbers add up to zero.

Answer Link

Otras preguntas

On a final exam, each multiple-choice question is worth 4 points and each word problem is worth 8 points. Lorenzo needs least 50 points on the final to eam a "B

3) In what way was Abraham Lincoln essentially forced to issue the Emancipation Proclamation?

Electrons are accelerated through a voltage difference of 230 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons? Trie

Write a 300 Word essay about how would you feel if you was in the movie breakthrough Please help

What does it mean when white light is diffracted and at a particular location the color seen is blue? Please use 2 content related sentences.

After a 20% price reduction a cell phone sold for $77. Find the original price of the phone

Which of the following statements concerning a process cost accounting system is false? A. The units in beginning inventory plus the units transferred out durin

Who’s the founder of America

Who are the supervisors of a faith

Please help me with this question