Answer:
Teachers to Students: 1:9, 1 to 19, 1/19
Students to teachers: 19:1, 19 to 1, 19/1
(If this is wrong the answers might be different for you but this is what I got an I was right)
Answer:
9
Step-by-step explanation:
(15×4+3)/4 ÷(4×1+3)/4= 63/4 ÷ 7/4= 9
Answer:
2
Step-by-step explanation:
Answer:
x=20
Step-by-step explanation:
(4x-12)+(x+2)=90
5x-10=90
5x=100
x=20