the first statement. "women are time and money" 'And' without any modifier implies summation. Women = Time + Money. If you make the initial statement more precise like "women (or girlfriends/wives so on) are the product of time and money" then it works.
+1 to what ArkhamAsylum said. quick but accurate estimation of various simple problems is what one encounters most often in the cockpit.
For the first time I noticed that discrepancy as I posted. It gave me pause.
[pause]
Then I decided that "x and y are" would never be a mathematical expression. "X and Y IS women," and I think you've got me...
In other words, "Women are time and money," is a description of the expression, "time * money = women," not the expression itself.