team of scientists found that there were 4 oak trees for every 10 pine trees. How many oak trees were there if they counted 36 more pine than oak?

Answer 1

One method is to use equivalent fractions until you find a difference of 36.
For instance 4/10 = 8/20 and the difference between 20 and 8 is 12.
4/10=12/30 and the difference between 30 and 12 is 18.
4/10=16/40 and the difference is 24... etc