They are all even numbers
0.25r-0.125+0.5r=0.5r
0.75r-0.125=0.5r
-0.125= -0.25r
r=0.5
20 of the students would be 6th graders, hope that helps!
Answer:
210
Step-by-step explanation:
1.(Subtract both sides) we know that 14 - 14 = 0 But now you turn ZERO Into an X because anytime you subtract and get a ZERO IT WOULD BE X SO NOW YOU WILL TRY TO FIND/SOLVE X' I HOPE THIS HELPED/HELPS! (: I GOT 15 AS THE ANSWER BY SUBTRACTING 224-14 AND THEN I GOT 210 AND DIVIDED BY 14. BUT SINCE THERE IS NO X=15 ,It would be 210 because of subtraction.