Tuesday, November 11, 2014

Lei's Proportion problem



1. If apples cost $6,how much would 12 apple cost ?
Let x be the cost for 12 apples
It will cost $24 for 12 apples


http://chicolockersausage.com/2011/12/30/what-is-really-in-a-hot-dog/
2.You can buy 2 hotdogs for $3, how much would it be for 4 hotdogs?
Let x be the cost for 4 hotdogs
The cost for 4 hotdog is $6

 Your problem :
You estimate that you can do 10 math problems in 30 mins. How long should it take you to do 20 math problems?

Related Posts:

  • Fili's Proportion Problems Proportion Problems 1) Sam can do 12 math problems in 45 minutes. How long will it take for Sam to finish 20 math problems   Let x be the minutes for 20 math problems Steps: Word Ratio, Ratio table, Find x … Read More
  • Rizza's Prorportion Problem 3 posters cost $9.60. How much will it cost for 48 poster? It will cost $15 to 48 posters. I estimated that I can do 12 math problems in 45 mins. How long would it take me to do 20 math problems? It will take me 75… Read More
  • Angelica's Proportion Problems http://advancedmls.ca/product/nombre-del-producto4/ 1) If 5 pencils cost 20 cents, how much would 15 pencils cost? Let x be the cost of pencils (15 of them) Word ratio, ratio table, find x (cross product) The cost o… Read More
  • Aisley's Proportion Problem If you buy 10 apples for $5, how much would it be for 30 apples?  http://upload.wikimedia.org/wikipedia/commons/e/ee/Apples. If you have 5 oranges that coast $4, how much would 15 oranges coast. htt… Read More
  • Lei's Proportion problem http://en.wikipedia.org/wiki/Rubens_apple 1. If apples cost $6,how much would 12 apple cost ? Let x be the cost for 12 apples It will cost $24 for 12 apples http://chicolockersausage.com/2011/12/30/what-is-… Read More

2 comments :

  1. Kim Garcia November 12, 2014 at 4:09 PM

    The answer for the question is ...
    Let "x" be how long it should take you to do 20 problems
    Steps: word ratio , ratio table , proportion , find x

    Problem | Min
    10 | 30
    20 | X Find proportion

    10x=30x20
    10x=600
    /10 /10

    x= 60

    It should take you 60 min to finish 20 math problems

    ReplyDelete
  2. UnknownNovember 12, 2014 at 6:09 PM

    Answer:
    ~It would take you 60 min to finish 20 math problems (I got the answer by doing cross multiplication)

    ReplyDelete

Note: Only a member of this blog may post a comment.