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OpenStudy (mathhelp346):
Using the equation method, what percent of 350 is 70?
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OpenStudy (anonymous):
you asked almost exactly the same question a minute ago. did you understand how that one was done?
OpenStudy (mathhelp346):
kind of
OpenStudy (anonymous):
OK. the equation for percent is: X percent of Y is x/100 * y. does that make sense?
OpenStudy (mathhelp346):
yea
OpenStudy (anonymous):
okay so can you write the equation for "X percent of 350"?
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OpenStudy (mathhelp346):
x/100 * 350
OpenStudy (anonymous):
right! and what is that equal to, according to the problem?
OpenStudy (mathhelp346):
70
OpenStudy (anonymous):
ok, so write that all down as an equation, what do you get?
OpenStudy (mathhelp346):
x/100 * 350 = 70
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OpenStudy (anonymous):
yes! you're on a roll. now do you know how to solve for x?
OpenStudy (mathhelp346):
no
OpenStudy (anonymous):
okay well a first step would be to multiply everything by 100. that means you multiply each term by 100 individually. what do you get?
OpenStudy (lilg132):
i have an easier way but i'll wait till you finish
OpenStudy (mathhelp346):
multiply each one by 100?
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OpenStudy (anonymous):
right, what do you get?
OpenStudy (mathhelp346):
100x/1000 * 35000 = 70
hero (hero):
|dw:1322626682147:dw|
Therefore 70 is 20% of 350
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