26-10-2015
Mathematics

contestada

3/9=21/k proportion

Respuesta :

26-10-2015

[tex]\frac{3}{9} = \frac{21}{k}\\\\\frac{1}{3}= \frac{21}{k}\\\\\sf Cross~multiply\\\\1(k) = 21(3)\\\\k = 21(3)\\\\\boxed{k = 63}[/tex]

Answer Link

Otras preguntas

how many numbers are equal to the sum of two odd, one digit numbers

What novel portrayed the lives of the wealthy during the 1920s? a. For Whom the Bell Tolls b. The Great Gatsby c. The Chronicles of Superman

Which of the following represents the belief used to justify westward expansion of America's borders in the 1800s?

How can creation myths influence how the history of the world or a society is viewed?

You invest $5000 in an account at 5.5% per year simple interest. How much will you have in the account after 5 years? Round your answer to the nearest whole dol

What did colonial leaders hope to achieve by using the boston massacre killings as propaganda?

Heracles was the son of Zeus, a god, and Alcmene, a mortal. Zeus's wife, Hera, hated the child, who was originally named Alcides, but was renamed Heracles in a

(2p + 3)(p2 – 4p – 7) expand and simplify

Find the area of a circle circumscribed about an equilateral triangle whose side is 18 inches long. a. 81 b. 108 c. 243

An expense is entered as a _____ in a financial ledger. a. balance b. credit c. debit d. savings