Answer:Benjamin’s age = 30 and David’s age = 6
Explanation:
Let x be the age of Benjamin
Let y be the age of David
x + y = 36
And 2x + 2y = 72
If we plug 30 for x and 6 for y we get:
30 + 6 = 36
36 = 36
2(30) + 2(6) = 72
60 + 12 = 72
72 = 72
=
34/6. You do 5 x the 6, then add the 4
the answer is negativepositive
Answer:
Step-by-step explanation:
1.7
To find the area of this triangle, we may use Heron's formula:
A = sqrt ((s)(s - a)(s - b)(s - c))
where s is the semi - perimeter, a, b, and c are the measure of the sides.
s = (a + b + c) / 2 = (10 + 10 + 16) / 2 = 18
Substituting this to the equation for area,
A = sqrt ((18)(18 - 10)(18 - 10)(18 - 16))
A = 48 units²
