Answer:
8.3
Step-by-step explanation:
 
        
             
        
        
        
The answer would be 30in. 
Reasoning: if the two figures are proportional, you would set it up in a proportion. It would be 36/x=12/10. Then cross multiply, so it would be 12x and 36(10). Afterwords you’ll have 12x=360, then divide both sides by 12 and you’ll end up with 30.
        
             
        
        
        
9514 1404 393
Answer:
- perimeter: 22 1/30 m
- area: 29 m²
Step-by-step explanation:
The perimeter is given by the formula ...
   P = 2(L+W)
   P = 2(4 7/20 +6 2/3) = 2(10 +61/60) = 2(11 1/60)
   P = 22 1/30 . . . . meters
__
The area is given by the formula ...
   A = LW
   A = (4 7/20)(6 2/3) = (87/20)(20/3) = 87/3 = 29 . . . . square meters
The perimeter is 22 1/30 meters; the area is 29 square meters.
 
        
             
        
        
        
Answer:Astrid needs 280 tons of wood
Step-by-step explanation:
Because:
1 ship requires 40 tons of wood=accomodates 300 sailors
We must:
2100, sailors needed to be accomodated 
÷
300, sailors that can be accomodated by 1 ship that requires 40 tons of wood
=7 groups of 300 sailors that can be accomodated by 1 ship that requires 40 tons of wood.
So:
I ship that requires 40 tons of wood × the 7, groups = 280 tons of wood.
I hope this helps! Im sorry its too complicated.
Simplier:
2100 ÷ 300= 7
40 × 7= 280
 
        
             
        
        
        
Answer:
Step-by-step explanation:
x^2 + x^2 = 128                 Normally you don't do this but rewrite the question
1x^2 + 1x^2 = 128
You actually do use 1 + 1 = 2 First time I've ever done that.
2x^2 = 128                         Divide by 2
2x^2/2 = 128 / 2
x^2 = 64                            Take the square root of both sides
sqrt(x^2)= sqrt(64)
x = 8