captainmia captainmia

20-05-2017
Mathematics

contestada

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

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

21-05-2017

i think kathys age is 11

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