Question 1043348

Sarah is twice as old as Andy.
Mel is nine years older than Sarah.
The total of their ages is 94. How old is Mel?
<pre>Let Mel's age be M
Then Sarah's is M - 9, and Andy's is: {{{matrix(1,3, (1/2) * (M - 9), or, (M - 9)/2)}}} 
Since their ages sum to 94, we get: {{{M + M - 9 + (M - 9)/2 = 94}}}______{{{2M - 9 + (M - 9)/2 = 94}}}
4M - 18 + M - 9 = 188 -------- Multiplying by LCD, 2
5M = 215
M, or Mel is: {{{215/5}}}, or {{{highlight_green(matrix(1,2, 43, years-old))}}}