OK. I am a Junior in high school with an A+ in Algebra II, and I can't figure this out!! I got a D in 7th grade Math (and 8th grade. and failed 9th grade math and had to go to summer school. finally turned it around last year! haha)
My brain tells me that you should divide 560 by 26...and then you get approx. 21 and then 26 X 21 should be 560...but it's not.
Let me get a calculator.
OK!!!!
560/ 26 = 21.53846154. If you round that to 21.54, then you multiply it by 26, the answer is 560.04, which is rounded down to 560.
so basically,
560/26 = 21.54 X 26 = approx. 560
So the sister is 21.54 years old.
am I right!?
haha |