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Mathematics 16 Online
OpenStudy (anonymous):

1.Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?

OpenStudy (anonymous):

So set up two equations as: T + B = 56 B = 2T + 8

OpenStudy (anonymous):

So you have the equations, and solve the system.

OpenStudy (anonymous):

i dont get it

OpenStudy (chihiroasleaf):

do you understand the mathematical model that @Zelda write?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

So basically, you know that Belinda (B) and Tony T has ages add up to 56 right?

OpenStudy (anonymous):

Is that true? (It is) So that's where we get the first equation comes from: B+T = 56

OpenStudy (anonymous):

With me so far?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

Next statement, Belinda is 8 more than two times tony's age. So 2times tony = 2T So far we have B = 2T, then since belinda is 8 older than 2T we do: B = 2T + 8. Get it?

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