Question

help, 57 and 58. medal and fan

Answer 1

Ok, starting with 57, they give you an equation and they want to know if r=9 is a solution. All you have to do is plug in 9 for r on both sides of the equation and solve. If both sides balance out then it's a solution, if they don't it's not a solution.

Answer 2

so 2-9/5?

Answer 3

\[\frac{ 2-r }{ 5 }+\frac{ 3r }{ 5 }=\frac{ r+2 }{ 3 }\]
\[\frac{ 2-9 }{ 5 }+\frac{ 3\times9 }{ 5 }=\frac{ 9+2 }{ 3 }\]

Answer 4

i got 5.6=9.66

Answer 5

that's not what I got...work on the numerators first...2-9=? and 3x9=?

Answer 6

-7 and 27

Answer 7

perfect, so you have -7/5+27/5...what do you get?

Answer 8

common denominators means you can add the numerators...denominator stays the same.

Answer 9

20/5=4

Answer 10

good, now what about the right side of the equation...(r+2)/3?

Answer 11

11/3

Answer 12

exactly, so now you just need to ask yourself if 4=11/3. Then you'll have your answer!

Answer 13

thank you

Answer 14

what about 58?

Answer 15

it's been awhile since I've done a problem like that. I'm solving it now so I can hopefully help you :)

Answer 16

thank you !!!!!

Answer 17

ok, so in theory I have an answer. I'm just going to check quick to be sure!

Answer 18

okay

Answer 19

my original work gave me an answer of 4/3, but when I plug it in it doesn't work out right.

Answer 20

I'm sorry, it's just been too long...I can't remember how to do it correctly. :(

Answer 21

thats okay. its jst one question! ill jst make a educational guess