chandislilly
chandislilly chandislilly
  • 20-01-2015
  • Mathematics
contestada

PLEASE HELP

Variable y varies directly with x2, and y = 75 when x = 5.



What is the value of y when x = 3?



y =

Respuesta :

luana
luana luana
  • 21-01-2015
[tex]y=75\ \ \ \ x=5\\\\ y=?\ \ \ \ \ x=3\\\\ proportion:\\ \frac{75}{y}=\frac{5}{3}\ \ \ | cross\ multiplication\\\\ 75*3=5y\\\\ 225=5y\ \ \ | divide\ by\ 5\\\\ y=45 [/tex]
Answer Link

Otras preguntas

If sin tita = cos tita find tita between 0° and 30°​
What year was the term that refers to the four-year period between Olympic Games first used?
A student mixed equal amounts of water and oil together in a bottle and found that the oil always floated above the water. What can be said about the density of
What jazz musician used just three harmonic models – the 12-bar blues, and the George Gershwin and Fats Waller songs "I Got Rhythm" and "Honeysuckle Rose" – und
Imagine there are two species of skunk occupying the same niche. They are competing for the same food and the same living space. The species that is best suited
The inverse property of addition
4(m+2)=-4 need help
Help with 4 and 5??? Please! Will give brainliest for the correct answers!
what number is equivalent to 4 to 3 power
Were slaves consider citizens of the United states