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Mathematics 15 Online
OpenStudy (mathhelp346):

Using the equation method, what percent of 350 is 70?

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"?

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

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?

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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