captainmia
captainmia captainmia
  • 20-05-2017
  • Mathematics
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Two times michaels age plus three times Kathys age is 47. Kathy is also four years older than Michael. How old is Kathy?

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iheartthatart
iheartthatart iheartthatart
  • 20-05-2017
Michael is m
Kathy is k

2m+3k=47
m+4=k

2m+3(m+4)=47
2m+3m+12=47
5m+12=47
5m=35

m=7
k=11
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skybluegirl1
skybluegirl1 skybluegirl1
  • 21-05-2017
i think kathys age is 11

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