Answer:
24.3
Step-by-step explanation:
18/20 = x/20 (similar triangles)
Answer:
1st option
Step-by-step explanation:
< less than would have a empty circle
and 4 is less than
Answer:
x = 6
Step-by-step explanation:
2x + 5 = 8x - 13 place like terms in the same side of the equation
5 + 13 = 8x - 2x add like terms
18 = 6x
6 = x
Answer:
180-n_c
Step-by-step explanation:
Given that the ratio of children to adults is 2:1.
Let
and
be the number of children and adults in the school carnival.
So, 

Given that the total number of peoples in the carnival =180
So, 

Now, from equations (i) and (ii), we have

Hence, the number of children in attendance is 120.