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Mathematics 7 Online
OpenStudy (anonymous):

in a chemistry class 4 litters of 4% silver iodine solution must be mixed with a 10% solution to get a 6%solution. how many litters of the 10% solution are needed?

OpenStudy (anonymous):

what di you get??

OpenStudy (anonymous):

I got a whole bunch of kitty litter.

OpenStudy (anonymous):

lol

jimthompson5910 (jim_thompson5910):

were you able to get started?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

well i just need answer

jimthompson5910 (jim_thompson5910):

we have " 4 litters of 4% silver iodine solution" so how many liters of pure silver iodine are there here?

OpenStudy (anonymous):

kis this a question or the problem is wrong??

jimthompson5910 (jim_thompson5910):

it's a question I'm asking you

OpenStudy (anonymous):

its cause the teacher messed with the order im not sure how to do this

OpenStudy (anonymous):

question

jimthompson5910 (jim_thompson5910):

what is 4% of 4

OpenStudy (anonymous):

.16

jimthompson5910 (jim_thompson5910):

say we add x liters of the 10% solution so we add on 0.1x liters of pure silver iodine

jimthompson5910 (jim_thompson5910):

in total, we have 0.16 + 0.1x liters of pure silver iodine

jimthompson5910 (jim_thompson5910):

total amount of solution: 4 + x

jimthompson5910 (jim_thompson5910):

so you need to solve this equation for x \[\Large \frac{0.16 + 0.1x}{4 + x} = 0.06\]

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