Need help with 2-3 problems (: I'll give a medal
A certain drug is made from only two ingredients: compound A and compound B. There are 7 milliliters of compound A used for every 4
milliliters of compound B. If a chemist wants to make 1089 milliliters of the drug, how many milliliters of compound B are needed?
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OpenStudy (anonymous):
divide 1089 by 11
OpenStudy (anonymous):
what do you get?
OpenStudy (ashleyy_smith):
99
OpenStudy (anonymous):
ok do if you divide 1089 in to 11 parts, each part is 99 ml
multiply that by 7 to get the amount of compound A, multiply 99 by 4 to get the amount of compound B
OpenStudy (ashleyy_smith):
A = 693 B = 396
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OpenStudy (anonymous):
i didn't do it,
would you like me to check?
OpenStudy (ashleyy_smith):
If u can (:
OpenStudy (anonymous):
i will check for you
OpenStudy (anonymous):
yes, you are right
OpenStudy (anonymous):
btw i hope it is clear that i got the 11 from
(7+4\)
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OpenStudy (anonymous):
yep lol
OpenStudy (anonymous):
7+4=11 i meant
OpenStudy (anonymous):
Ashleyy_Smith will you fan me lol
OpenStudy (ashleyy_smith):
Oh okay! what about this one.
Each marble bag sold by Rita's Marble Company contains 5 purple marbles for every
8 green marbles. If a bag has 45 purple marbles, how many green marbles does it contain?
OpenStudy (anonymous):
how many times does 5 go in to 45?
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OpenStudy (ashleyy_smith):
9
OpenStudy (anonymous):
ya
OpenStudy (anonymous):
so each of the 9 groups of 5 purple marbles gives 8 green ones
compute \(9\times 8\)
OpenStudy (ashleyy_smith):
um 72
OpenStudy (anonymous):
um right
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OpenStudy (ashleyy_smith):
so that's the answer :o?
OpenStudy (ashleyy_smith):
@satellite73
OpenStudy (anonymous):
yes that is the "final answer"
OpenStudy (anonymous):
if the bag has 45 purple marbles it must have 72 green ones
OpenStudy (ashleyy_smith):
Oh yay! 2 more!
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OpenStudy (ashleyy_smith):
ok it's
Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 3 liters of natural oil for every 4 liters of synthetic oil. In order to make 637 liters of Petrolyn oil, how many liters of natural oil are needed?
OpenStudy (anonymous):
this is like the first one
what is \(3+4\)?
OpenStudy (ashleyy_smith):
7
OpenStudy (anonymous):
ok how many times does 7 go in to 637?
OpenStudy (ashleyy_smith):
4,459
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OpenStudy (anonymous):
oh no!
OpenStudy (anonymous):
not 7 times 637, \(367\div7\)
OpenStudy (anonymous):
1045, is your anser
OpenStudy (ashleyy_smith):
OHH
OpenStudy (ashleyy_smith):
huh :s
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OpenStudy (anonymous):
i made a typo
divide \[637\div 7\]
OpenStudy (ashleyy_smith):
91
OpenStudy (anonymous):
ok so \(3\times 91\) for natural and \(4\times 91\) for synthetic
OpenStudy (anonymous):
i looked it up and i made sher is was right
OpenStudy (ashleyy_smith):
273 Natural and 364 Synthetic
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OpenStudy (anonymous):
looks good
OpenStudy (ashleyy_smith):
273 right?
OpenStudy (anonymous):
yes, both are right
OpenStudy (ashleyy_smith):
I hope this is the last one..
The ratio of men to women working for a company is 5 to 6. If there are 174
women working for the company, what is the total number of employees?
OpenStudy (anonymous):
how many times does 6 go in to 174?
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OpenStudy (ashleyy_smith):
29
OpenStudy (anonymous):
ok multiply that by 5 to get the number of men
than add that to 174
OpenStudy (ashleyy_smith):
319 is the answer?
OpenStudy (anonymous):
that is what i get, yes
OpenStudy (ashleyy_smith):
Ok this one is the last one for sure sure
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OpenStudy (ashleyy_smith):
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 5 to 3. If there were 4472 total votes, how many yes votes were there?
OpenStudy (anonymous):
lol
OpenStudy (anonymous):
this is again like the first one
\(5+3=8\) divide \(4472\div8\)
OpenStudy (ashleyy_smith):
559
OpenStudy (anonymous):
ok multiply that by 5 to get the number of yes votes
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OpenStudy (ashleyy_smith):
2,795 woah lol
OpenStudy (anonymous):
looks good`
OpenStudy (ashleyy_smith):
Got it thank you :))
OpenStudy (anonymous):
yw, done?
OpenStudy (ashleyy_smith):
yeahhh with that module. Now I just have the other module to do :P
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