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Mathematics 29 Online
OpenStudy (anonymous):

64 is 4 times the difference between Sarah's age, a, and 44. Assume Sarah is older than 44. Write an equation to determine Sarah's age (a).

OpenStudy (anonymous):

Can you work backwards?

OpenStudy (anonymous):

huh?

OpenStudy (anonymous):

i mean if 64 is 4 times the difference then your first(not final) equation would be y times 4 = 64

OpenStudy (anonymous):

if you have to multiply something by 4 to get 64, just divide 64 by 4 to get that mysterious number

OpenStudy (anonymous):

16

OpenStudy (anonymous):

yep so "4 times the difference between sarahs age and 44"

OpenStudy (anonymous):

" the difference" would be 16, which you just told me

OpenStudy (anonymous):

so 16 is the difference between sarahs age and 44

OpenStudy (anonymous):

so we write a-44=16

OpenStudy (anonymous):

thats your equation. now can you tell me what, a, sarahs age is?

OpenStudy (anonymous):

you there?

OpenStudy (anonymous):

sorry

OpenStudy (anonymous):

yeah im here

OpenStudy (anonymous):

no problem

OpenStudy (anonymous):

just helping my sister with something.

OpenStudy (anonymous):

a=60

OpenStudy (anonymous):

yup so sarahs a 60 year old good job peace

OpenStudy (anonymous):

thanks!

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