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Destinyyyy
 one year ago
A chemist needs 190 milliliters of a 47% solution but has only 25% and 63% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
Destinyyyy
 one year ago
A chemist needs 190 milliliters of a 47% solution but has only 25% and 63% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.

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perl
 one year ago
Best ResponseYou've already chosen the best response.1If we assume that x = number of milliliters of 25% solution y = number of milliliters of 63% solution x + y = 190 .25x + .63y = 190 * .47

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.1I match up the y's to cancel them out correct?

perl
 one year ago
Best ResponseYou've already chosen the best response.1yes, you can solve by substitution or elimination

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.1I got x=317.38 which cant be correct

perl
 one year ago
Best ResponseYou've already chosen the best response.1x + y = 190 .25x + .63y = 190 * .47 multiply the second equation by 100. that will get rid of decimals. x+y=190 25x + 63y = 8930

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.1x=230 then I plug this into x+y=190

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.1Yes ... For x+y=190 times it all by 63 to cancel out the ys ... But then I get 38x=8740

perl
 one year ago
Best ResponseYou've already chosen the best response.1Did you get this? 63x 63y = 11970 25x + 63y = 8930

perl
 one year ago
Best ResponseYou've already chosen the best response.1I multiplied first equation by 63

Destinyyyy
 one year ago
Best ResponseYou've already chosen the best response.1. oh my gosh i left it as 190
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