Answer:
Suppose, a triangle ABC, whose sides are a, b and c, respectively. Thus, the area of a triangle can be given by; Area= 30
Area = 1/2 x 15 x4 = 30 square yards
Step-by-step explanation:
Find a variable with equal or opposite coefficients, if equal then subtract the equations but if opposite then add, solve one variable equation left, and then substitute known variable into other equation and solve
-8 - 5n = 64 + 3n
+5n +5n add 5n to both sides, 5n's cancel out on the left.
______________
-8 = 64 + 8n
-64 -64 subtract 64 on both sides, 64's cancel out on the right.
______________
-72 = 8n
___ ___ divide 8 on both sides, 8's cancel out from the right.
8 8
n= -9, final answer
Answer:
3 <x8+4
Step-by-step explanation:
I'm not 100% sure I read the question correctly but..
The ratio between Area of D and Area of C is 28:7.
That means the simplified version is 1:4.
From our ratio, we can derive that the scale factor is 4.
