Answer:
No.
Explanation:
Ratio of any objects can be calculated by dividing the two objects with the common number.
Boys in the sixth grade = 35.
Girls in the sixth grade = 42.
Ratio of boys to girl =

Ratio =
Ratio = 5:6. (the numbers are divided by 7).
Thus, the ratio is 5:6 and not the 5:7.
Thus, Lonnie is not correct.