84 divided by 2 is 48
one set of 48-12 is 36
36 students are in the science club
Answer:
Perpendicular.
Step-by-step explanation:
4x - 7y = 9 ---> 7y = 4x - 9 ---> y = 4/7 x - 9/7, slope= 4/7
7x + 4y = 5 ---> 4y = - 7x + 5 ---> y = - 7/4 x + 5/4, slope = - 7/4
lopes are negative-reciprocal , so these lines are perpendicular.
2. always
Percents tell us how many parts a certain thing has out of a total of 100 parts; thus, the denominator is always 100.
What equation? there isn’t any shown.
45cm I’m sorry that’s not the answer I just need answers for my questions sis
