SOLUTION: a certain concrete mixture contains 6.00% cement and 8.00% sand how many kilograms of sand should be combined with 255 kg of cement to make aa batch that is 14.0% cement and 16.0%

Algebra ->  Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: a certain concrete mixture contains 6.00% cement and 8.00% sand how many kilograms of sand should be combined with 255 kg of cement to make aa batch that is 14.0% cement and 16.0%       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1134792: a certain concrete mixture contains 6.00% cement and 8.00% sand how many kilograms of sand should be combined with 255 kg of cement to make aa batch that is 14.0% cement and 16.0% sand?
Found 3 solutions by josgarithmetic, ankor@dixie-net.com, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
a certain concrete mixture contains 6.00% cement and 8.00% sand
how many kilograms of sand should be combined with 255 kg of cement to make a
batch that is 14.0% cement and 16.0% sand?
:
let x = the total amt of the concrete in this new mixture
14% of the new mixture equals 255
.14x = 255
x = 255/.14
x = 1821.43 kg total weight of the concrete
:
Find the amt of sand in this concrete mixture
.16 * 1821.43 = 291.43 kg of Sand required

Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.


                    This problem is posed / formulated   I N C O R R E C T L Y.


    - Why ? -

Because there is  NEITHER  logic  NOR  functional  connection between the first sentence 

    "A certain concrete mixture contains 6.00% cement and 8.00% sand."

and the second  (and the last)  sentence/question 

    "how many kilograms of sand should be combined with 255 kg of cement to make aa batch that is 14.0% cement and 16.0% sand? "


Simply the person who created and formulated the problem,  does not know the subject and does not possess terminology.

Naturally,  it means that the solutions of both other tutors make no sense.


All this stuff must be redirected to the  GARBAGE  BOX  immediately.


======================

Meanwhile,  in this site there is a  HUGE  collection of lessons devoted to mixture problems,

and among these lessons there is one containing  VERY  SIMILAR samples and templates of solved problems

    - Advanced mixture problems