Homework Help: math

Posted by Americal on Saturday, January 12, 2013 at 1:53pm.

The ratio of guests under 15 to the total number of guests is 1:2. How many guests are under 15? The answer is five. Am I correct.
Table
Age Range Guest

Under 15 X
15-40 6
41-65 3
Over 65 2

math - PsyDAG, Saturday, January 12, 2013 at 3:50pm
No. The "total" includes everyone including those under 15.

1/2 = x/(11+x)

5.5 + .5x = x

5.5 = .5x

11 = x

Thus there are 11 under 15 and 22 total.

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