Answer:
x = 75
Step-by-step explanation:
Given information from the question:
x - 3y = 30
y = 15
We can substitute y = 15 into the equation to find x.
x - 3(15) = 30
x - 45 = 30
x - 45 + 45 = 30 + 45
x = 75
Well we don't know the total of students so we divide 283 by 7.Which equals approximately to 41.
Answer:
Step-by-step explanation:
I am sorry but please give detailed question