Answer:
x = 3y
x + y = 24
The number of social media advertisement purchased is 18
And, the number of newspaper advertisements purchased is 6
Step-by-step explanation:
Let us assume the number of social media advertisement purchased be x
And, the number of newspaper advertisements purchased be y
As three social media advertisements for every one newspaper advertisement is purchased
So,
y = x ÷ 3
x = 3y
And it is ended by total of 24 advertisement
That means
x + y = 24 ............(1)
Now put the value of x in equation 1
3y + y = 24
4y = 24
y = 24 ÷ 4
= 6
x = 3y
= 6 × 3
= 18
Now The equations are
x = 3y
x + y = 24