well, what variable are you solving for? like if you're solving for x, it would be:
tg is greater than or equal to 0x
1100/2
=550
because 100% is 500 and 100% is last year's population
First, you must use a factor tree to find the prime factors of the number.
12
/ \
6 (2)
/ \
(3) (2)
2 , 2 and 3 are the prime factors that make 12
2 x 2 x 3= 12
Or
2^2 x 3= 12
So the ratios are 5:5 and 3:5 so the fractions are 5/10 (1/2) for 7th grade and 5/8 for 8th grade
