anonymous
  • anonymous
Brad is three times as old as Terri. The sum of their ages is 60. How old is Brad?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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dmcdowell
  • dmcdowell
brad is 18 and terri is 6 medal plzzz
anonymous
  • anonymous
@dmcdowell you are expected to provide explanation to your reasoning rather than simply give answer or guess.
dmcdowell
  • dmcdowell
im not guessing I done it on a calculator its easy now I garentee its right @Hoslos and okay I wont give out the answer no more

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anonymous
  • anonymous
it's not right brad is 45.
anonymous
  • anonymous
Your answer may be correct or not, but give an explanation whenever possible @dmcdowell .
dmcdowell
  • dmcdowell
whatever man @Hoslos
anonymous
  • anonymous
@frebrezze Let Brad be 'B' and let Terry be 'T'. You basically have 2 equations. For starters, this might tell you to solve simultaneous equation, where 1. B=3T 2. B+T=60 You can use substitution, where you make one of the variables the subject and put it in the other one. The 1. equation already has B as the subject. Hence we put it on 2. That will be\[3T+T=60\rightarrow4T=60\rightarrow T=15\] Now, you replace the result from 2. to 1. That will be \[B=3(15)=45\]

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