Answer:
D
Step-by-step explanation:
3 1/2 - 1 7/10
7/2 - 17/10 (Common denominator 10, multiply 7 and 2 by 5)
35/2 - 17/10 = 18/10
1 8/10 = 1 4/5
Answer: 90
Step-by-step explanation:
opposite side is 90
Answer:
The number of teacher who joined the school is 20
Step-by-step explanation:
Teacher : Students = 1 : 16
Number of teachers = 1x
Number of students = 16x
16x = 1600
x = 1600/16
x = 100
Number of teachers at the beginning = 100
Now, after some teachers (let it be y) joining the school,
Teacher : students = 3:40
The number of teacher who joined the school is 20
Answer:
a
Step-by-step explanation:
THATS A no brainer lol