Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

gaara438125Best ResponseYou've already chosen the best response.0
\[\frac{ 2 }{ 5 }  \frac{ 3 }{ x } = \frac{ 1 }{ 5x }\] what's the LCD?
 one year ago

gaara438125Best ResponseYou've already chosen the best response.0
\[\frac{ 2 }{ 3 } +\frac{ 7 }{ x } + \frac{ 32 }{ 6x }\] the LCD would be 6x for all the denominators can multiply into 6x 3 * 2x  x * 6  6x * 1 
 one year ago

gaara438125Best ResponseYou've already chosen the best response.0
what ever you multiply the denominator by you HAVE to multiply the same number to the numerator.
 one year ago

gaara438125Best ResponseYou've already chosen the best response.0
let's go back to the original equation and look at that in the denominator what is the highest number they can all equal? 5, x, and 5x
 one year ago

gaara438125Best ResponseYou've already chosen the best response.0
touche ." lol i meant without dividing 5, x and 5x can ALL equal 5x
 one year ago

misswiss123Best ResponseYou've already chosen the best response.1
I have no idea ;'(
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
2/5 is equivalent to (2x)/(5x) if you multiply top and bottom by x 3/x is equivalent to 15/(5x) if you multiply top and bottom by 5 Notice how they now have the same denominator of 5x This means 2/5  3/x = 1/(5x) is the same as (2x)/(5x)  15/(5x) = 1/(5x) which allows you to combine the two fractions on the left side to get (2x  15)/(5x) = 1/(5x) What's next?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
If two fractions are equal, and their denominators are equal, then the numerators must be equal
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
so this means that if (2x  15)/(5x) = 1/(5x) then 2x15 = 1
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
if 2x  15 = 1, then x = ???
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.