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A druggist has two mixtures of a certain chemical and water, one containing 10% of the chemical and the other containing 40% of the chemical. How much of each mixture should he use to make 10 ounces that contain 25% of the chemical?
 one year ago
 one year ago
A druggist has two mixtures of a certain chemical and water, one containing 10% of the chemical and the other containing 40% of the chemical. How much of each mixture should he use to make 10 ounces that contain 25% of the chemical?
 one year ago
 one year ago

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malicalBest ResponseYou've already chosen the best response.0
Really? We just answered this for you.
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
x+y = 10 .1x + .4y = (.25)10
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
?? what about 7.5 solve system using substitution y = 10x > .1x +.4(10x) = 2.5 ... solve for x
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
no...show your steps so i know what you did wrong
 one year ago

gaby236Best ResponseYou've already chosen the best response.0
@dumbcow my answer is 1
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
for x? no, by plugging 1 in you can see that both sides will not equal each other seems like you are guessing
 one year ago

gaby236Best ResponseYou've already chosen the best response.0
okey men isx ounces of 10% soln mixed with (10 – x) ounces of 40% soln. as total final volume is 10 ounces amount of chemical in x ounces = 0.1x amount of chemical in (10 – x) ounces = 0.4(10 – x) = 4 – 0.4x amount of chemical in 10 ounces = 10 × 0.25 = 2.5 chemical balance 0.1x + 4 – 0.4x = 2.5 0.3x = 1.5 x = 5 ounces of 10% mixed with (10 – 5) = 5 ounces of 40% to give 10 ounces of 25%
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
yes solution is (5,5) how do you go from guessing to writing a well laid out solution ...haha
 one year ago
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