Answer:
157
Step-by-step explanation:
We are given that
Number of students in maths 2A=n(2A)=51
Number of students in math 2B=n(2B)=80
Number of students in math 2C=n(2C)=70
Number of students in maths 2A and 2B=
Number of students in maths 2B and 2C=
Number of students in maths 2A and 2C=
Number of students in maths 2A ,2B and 2C=4
We have to find the number of students in a set.
Formula:
Substitute the values in the given formula

Hence, total number of students in a set=157
A system of equations is graphed on the coordinate plane.
2y=3x−14
y=6x−2
A. No solution
☆☆☆☆☆☆☆☆☆☆☆☆B. One solution
C. Infinitely many solutions
Answer: 57.266
Align all the decimal point and do the operation required.
the answer is : 3.814697266