sophiesullivan0210 sophiesullivan0210
  • 26-01-2021
  • Mathematics
contestada

y is inversely proportional to x.
When y = 7, x= 9
Work out the value of y when x = 21.

Respuesta :

clarch19
clarch19 clarch19
  • 26-01-2021

Answer:

y = 3

Step-by-step explanation:

y is inversely proportional to x setup:  y = k/x

'k' is the constant of variation; find this first

7 = k/9

k = 63

now use 'k' to find 'y'

y = 63/21

y = 3

Answer Link

Otras preguntas

What is the remainder when 1408 is divided by 9
divers in a competition are scored by an international panel of judges. The highest and the lowest scores are dropped. The total of the remaining scores is mult
Are a group of cells called an organ
what is 16=10/3a equal
North Sami and Faroese are languages native to what continent
i need help on a story problem? Jason ran 5/7 of the distance around the school track. Sara ran 4/5 of Jason's distance. What fraction of the total distance aro
Use the word dishonest in a sentence
Which term best describes the underlined words? The best way (to save money) is not to spend any of it.  A.gerund phrase  B.infinitive phrase  C.participial phr
Round to the underlined place value 0.9122 the first 2
Native American civilizations were threatened by..