7.8 x 100 = 780
7.83 x 10,000 = 78,300
Answer:
choice 1
Step-by-step explanation:
A= 250 m²
Each triangle gets:
250/4= 62.5 m²
l=12 m, h= 10.4 m ⇒ A= 1/2*12*10.4 m²= 62.4 m² is the correct option, the rest give greater area
Move the 8 over
-x=3x-8
Move the 3x over
-x-3x=8
-4x=8
Divide by -4
x=-2