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rambo2210
Group Title
If r = 5 z then 15 z = 3 y, then r =
(A) y
(B) 2 y
(C) 5 y
(D) 10 y
 one year ago
 one year ago
rambo2210 Group Title
If r = 5 z then 15 z = 3 y, then r = (A) y (B) 2 y (C) 5 y (D) 10 y
 one year ago
 one year ago

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nphuongsun93 Group TitleBest ResponseYou've already chosen the best response.0
r = 5z ?r = 15z ?r = 15z = 3y
 one year ago

rambo2210 Group TitleBest ResponseYou've already chosen the best response.0
please explain.
 one year ago

rambo2210 Group TitleBest ResponseYou've already chosen the best response.0
@frx can you please solve this?
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
It's A. let me explain
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
You got \[r=5z; 15 z=3y\]
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
So what you wanna find is what r is in terms of y
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
r=5z and 15z=3y so the conclution from that is that 5z is 1/3 of 15z, right?
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
That means that r=5z=y
 one year ago

rambo2210 Group TitleBest ResponseYou've already chosen the best response.0
so final answer is "A"?
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
Another formulation: you know that 15z=3y and you want to find 5z
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
Do you get it? :)
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
You can also set it as an equationsystem
 one year ago

rambo2210 Group TitleBest ResponseYou've already chosen the best response.0
yeap got it. thank you.
 one year ago

frx Group TitleBest ResponseYou've already chosen the best response.1
\[r=5z \] \[z=\frac{r}{ 5 }\] \[15z=3y\] \[15\frac{ r }{5 }=3y\] \[3r=3y\] \[r=y\]
 one year ago
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