Mathematics
OpenStudy (anonymous):

a measuring cup contains 1/5 of a cup of orange juice ,it is filled then to the 1 cup mark with a mixture that contains equal amounts of orange,grapefruit,and pineapple juice , what fraction of the final mixture is orange juice ?

OpenStudy (lgbasallote):

(1-1/5) divided by 3

Parth (parthkohli):

Here's an equation. $$\Large \color{Black}{\Rightarrow {1 \over 5} + x + x + x = 1 }$$ Can you do now?

OpenStudy (anonymous):

that's all ,!? ok thank you but the firest x is orrange too how !

Parth (parthkohli):

Hmm?

OpenStudy (lgbasallote):

it's just asking the fraction of orange juice in the FINAL MIXTURE ^_^

Parth (parthkohli):

First find x then plug it in then see the fraction of orange juice in the mixture

OpenStudy (anonymous):

but the unsewer here is 7/15 not 4/15!! how

OpenStudy (anonymous):

ohh means 4/15+1/5 !!ok

OpenStudy (lgbasallote):

oh...yeah *facepalm*

OpenStudy (anonymous):

yeh I get it thak you your amazing