OOps this is in the wrong forum sorry
Hi guys just wondering if you could help me out with this question i know the answer is 10 but im not sure how the eqution is set up?
The amount of sleep ( s hours) a child needs depends on its age (A years)., and is given bu the foruma above S=15-1/2 (half)A
If a girls age is equal to the number of hours she should be sleeping how old is she
Thanks
Sam