Answer:
50 People
Step-by-step explanation:
The answer must be 50 people because if you add up all the data it shows
Given at you have an equilateral triangle, all sides have the same length.
Therefore,
First side 2x-7 = Second side x+y-9 = Third side y+5
Let us look at the second and third sides for now:
x+y-9 = y+5
x = y+5 - (y-9)
x = y-y+5+9
x = 14
Then we look at equating the first and third sides:
2x-7 = y+5
y = 2x-7-5
Substitute x =14 in the equation above:
y = 2(14)-7-5
= 28-7-5
= 21-5
= 16
The length of the third side is:
y+5 = 16 +5 = 21
Given that the length of each sides are the same in an equilateral triangle, all sides have the length 21cm.
<span>Solve for x
-x=-5
multiply both sides by (-1)
</span>-x (-1) =-5 (-1)
simplify
x = 5
answer is 5 (positive 5)
Answer:
Step-by-step explanation:
you have to have a quadratic equation, not sure what your question is,
Answer: 137
Step-by-step explanation: