# Posts by Melanii

Total # Posts: 32

Math
sorry my computer messed up. my name is not "Anonymous"

Algebra 1
the sum of eric's and bob's weights is 9 times greater than the difference of their weights. the positive difference of their weights is also 240 lbs less than the sum. if eric weighs less than bob, find bob's weight. i can't find an equation for this. any help...

Algebra 1
i got (rounded) 1.4 and 1.4

Algebra 1
ok for "r" i got 1.388888888888888(cont.)

Algebra 1
5 green balls and 2 red balls together weigh 10 pounds, and 1 green ball and 4 red balls together weigh 7 pounds. If all red balls weigh the same amount and all green balls weigh the same, then what is the weight of 8 red and 8 green balls together? I'm not sure at all how...

math
i just did too. :)

math
sorry 5.4.3?

math
hi rachelle did you get number 5.3.4 yet?

math
good luck to you too, and no problem :)

math
lol i just came on here because 1. i needed help w/ homework 2. my friend and i can work together here my home work is really annoying tonite. if you look under many of the algebra or algebra 1 topics by me or Rachelle you'll see why i'm here. :):):)

math
no, actually i'm in seventh grade. i'm taking algebra 1. :)

math
both are right. the line does have infinite solutions, so either way works. it really depends on what you think works best or how your teacher teaches it.

math
yes!! to check, just plug in the numbers and see if they fit. :)

Algebra
yeah... i don't know about that equation though. i don't think 15 fits into it....

Algebra
maybe it's 6a=b? and they are 15 min apart?

Algebra
LOONDSI i tried this one. kinda. i don't think this is right but my equation was this: 6a+15=b -15 -15 6a=b-15 -b -b -15=6a-b -1(-15=6a-b) 15=(-6)a+b and then i guessed and checked... (-2,3) worked but that didn't help. now i'm stuck too. nooni

Algebra 1
yeah.........................

Algebra 1
erg i still don't really get it. oh well

Algebra 1
just reposting :):) i still don't really get it. "Tweedledum says: the sum of your weight and twice mine is 361 lbs. Tweedledee says: contrariwise, the sum of your weight and twice mine is 362 lbs if both are right how much do they weigh together?" i got this ...

algebra
i reposted it btw ok? :):):) just so you know.

algebra
thanks chopsticks. yeah that makes sense... i'm gonna try it.

algebra
i kinda did ratios 5:2 =10 4:1 =7 8:8 =? so then 2 1/2:1 =5 2:1/2 =3 1/2 4:4 =?

Algebra
hey!! rachelle (loondsiy) :):):)

Social Studies

science
a flat sheet of paper has more area that the air pushes against, more mass, than a crumpled up paper.

motion and projection
do you mean that they can orbit forever? if so then no they can't.

Math
why did you repost?? look on your other one the answers are there

Math
thanks :)

Math
what i would do is divide 30 by 2, which is 15. then, since they are 8 apart, find 15-4 and 15+4. those are the two numbers they are 8 apart and =30. hope this helps, mel

Algebra1
no. i thought that is what their weights together were!!!??? :)

Algebra1
srry that was me above

Algebra1
"Tweedledum says: the sum of your weight and twice mine is 361 lbs. Tweedledee says: contrariwise, the sum of your weight and twice mine is 362 lbs if both are right how much do they weigh together?" i got this part, but the next part i can't figure out: "...

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