X = √7²+4² by using Pythagoras Theory as the triangle is a right angled triangle
Answer:
There are 9 adults
Step-by-step explanation:
3:5 = x:15
3/5 = x/15
3(15) = 5x
5x = 45
x = 9 adults
3:5 = 9:15
(x - 3) + (x - 6) + x = 63
x - 3 + x - 6 + x = 63
Combine like terms
3x - 9 = 63
Isolate the constant
3x - 9 + 9 = 63 + 9
3x = 72
Isolate the viable
3x / 3 = 72 / 3
x = 24
Answer:
answers
Step-by-step explanation:
Option b: 10 in, 18.5 in, 31.5 in.
Explanation:
The three sides of a triangle are
and 
The perimeter of the triangle is
.
Since, Perimeter = all sides of the triangle
Let us add all the three sides to determine the length of each side.

Substituting the value of Perimeter and simplifying, we get,

Substituting
in the three sides of the triangle
and
, we get,



Thus, the lengths of each side are 10 in, 18.5 in, 31.5 in.