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Mathematics 18 Online
OpenStudy (anonymous):

Suzie is five years older than her brother, Michael. Write an expression to represent the sum of their ages of Michael's age is represented by x.

OpenStudy (anonymous):

first lets assume michael is 5, how old would suzie be?

OpenStudy (anonymous):

10 ?

OpenStudy (anonymous):

@agentc0re

OpenStudy (anonymous):

Yes, that's correct. If you could write that in it's most basic form of a math equation, how would you?

OpenStudy (anonymous):

I have no idea ? x+10??

OpenStudy (anonymous):

No no, i mean in just our example.

OpenStudy (anonymous):

I dont know how

OpenStudy (anonymous):

5+5 right? If Michael was 5, and we know that Suzie is 5 years older then michael, we find her age by adding, 5+5(michaels age). Right?

OpenStudy (anonymous):

ohh ok so the expression would be 5+5 ?

OpenStudy (anonymous):

For the final answer

OpenStudy (anonymous):

For our example, correct-o-mundo! BUT, if we wanted to create an expression that would be for any age that michael "could" be we would then just replace 5 with a variable. This would allow us to choose any value!

OpenStudy (anonymous):

but, In this problem the answer is 5+5 right ?

OpenStudy (anonymous):

No, no. That was just if Michael was at the age 5. If michael's age is not 5, but instead he is age "x"...how would you re-write that?

OpenStudy (anonymous):

x+5 ?

OpenStudy (anonymous):

I tried this answer and it was wrong ...

OpenStudy (anonymous):

That is the correct answer, as I see it. Maybe you need to represent suzies age as another variable like "y". y=5+x

OpenStudy (anonymous):

idkk.. that doesn't look correct to me

OpenStudy (anonymous):

i only have one attempt on this quiz and dont want to get it wrong again

OpenStudy (anonymous):

Well no one here should be helping you out with your quiz material anyways.

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