Are a and b two points on a line
If they are you can use the distance formula
Answer:
<h2><u><em>
n = 4</em></u></h2>
Step-by-step explanation:
3n + 16 = 7n
3n - 7n = -16
-4n = -16
n = -16 : (-4)
n = 4
---------------- check
3 * 4 + 16 = 7 * 4
12 + 16 = 28
28 = 28
the answer is good
Answer:
3 students
Step-by-step explanation:
As shown in the Venn diagram, let
x be the number of students who do not like either playing soccer or swimming
U=[Total number of students in the class]

A=[Number of students who like playing soccer]

B=[Number of students who like swimming ]

We write mathematically equation in terms of x, for the problem, and solve for x value.


Subtract 12 from both sides.


Hence, be the number of students who do not like either playing soccer or swimming is 3.