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 to solve this one, either... please help in any way you can! Thanks! :-)

Responses

algebra - Melanii, Tuesday, February 17, 2009 at 4:59pm
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 - Chopsticks, Tuesday, February 17, 2009 at 5:00pm
The red ball weighs about 1.4
the green ball weighs about 1.44

So i think 8r and 8g ball weighs about 22.72

This is not an exact measurement of each balls, just an estimate.

algebra - Rachelle, Tuesday, February 17, 2009 at 5:03pm
Wow... 1/2 of a ball. :-)

I see what you were trying to get across... but our teacher never showed us a problem like this... so frustrating.

I don't know if your ratio way is exactly right, but it is a good way to straighten out the info.

Wait... I got something!
Maybe it's...

g is green and r is red.

5g + 2r = 10
g + 4r = 7

Then, if we add those together and find out what one ball weighs individually, then you just multiply it by 8! I think I got it! :-)

just reposting :):):)

algebra - Melanii, Tuesday, February 17, 2009 at 5:07pm
thanks chopsticks.

yeah that makes sense... i'm gonna try it.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. ok for "r" i got 1.388888888888888(cont.)

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. i got (rounded) 1.4 and 1.4

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Pre Algebra Probability

    Each of two urns contains green balls and red balls. urn 1 contains 10 green balls and 14 red balls. urn 2 contains 4 green balls and 11 red balls. if a ball is drawn from each urn what is p(red and red)? BTW- i really don't know

  2. Math (Probability)

    Each of two urns contains green balls and red balls. Urn I contains 8 green balls and 12 red balls. Urn II contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C.

  3. Math

    Each of two urns contains green balls and red balls. Urn one contains 10 green balls and 8 red balls. Urn two contains 3 green balls and 10 red balls. If a ball is drawn from each urn, what is P(red and red)? A. 23/18 B. 10/27 C.

  4. Maths

    There are 3 green balls,5 red balls and 2 yellow balls in a bag.You take out one without looking.What is the probability of picking out a yellow ball?

  1. maths

    Tony has a bucket filled with 10 green, 3 blue, 1 red, and 7 yellow tennis balls. He removes 4 tennis balls from the bucket, without replacement. Which of the following outcomes could represent this selection? A. All of the tennis

  2. mathematics

    In a box containing 11 red balls, 12 green balls and 5 yellow balls. Two balls are drawn one by one without replacement, what is the probability that (correct your answers to 4 decimal places.) both of them are the same color?

  3. Probability

    A basket contains 3 red balls 5 blue balls and 7 green balls. Two balls are picked one after the other without replacement find the probability that. (a) Both are red. (b) First is blue, the other is green. (c) One is blue, the

  4. math

    PLEASE HELP!!!(: There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow). (1 point) A. 400 over 900 B. 5 over 30 C. 8 over 30 D. 40 over 870

  1. math

    A bucket contains 5 green tennis balls, 2 yellow tennis balls, and 6 red tennis balls. Tony removes 3 tennis balls, with replacement, from the bucket shown. What is the probability that the first tennis ball is yellow, the second

  2. Mathematics

    A box contains three red balls,two green balls and one blue ball.In how Many ways can two ball be chosen?

  3. Probability again

    A box contains 6 red balls, 4 blue balls, and 2 green balls. Three balls are randomly drawn (without replacement) from the box. What is the probability that the three balls selected are all the same color?

  4. Another math related question

    Two urns both contain green balls and red balls. Urn 1 contains 6 green balls and 4 red balls and urn 2 contains 8 green balls and 7 red balls. A ball is drawn from each urn.What is the probability that both balls are red

View more similar questions or ask a new question.