Answer:
-1 to the nearest whole number.
Step-by-step explanation:
(-0.3) ÷ (-0.2)+(-2.56)
Order of operations - the division is done first:
= 1.5 = (-2.56)
= 1.5 - 2.56
= -1.06.
 
        
             
        
        
        
the correct question in the attached figure
(2^5)/8=2^2
we have
8----------- >2^3
(2^5)/8----------- >  (2^5)/(2^3)=2^(5-3)=2^2
therefore 
2^2=2^2-- ------> is ok
 the answer is by simplifying 8 to 2^3 to make both powers base two and subtracting the exponents
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Given the simultaneous equation 
3x+4y=15. Equation 1
3x-y=30. Equation 2
Using elimination method
Sutract equation 2 from 1
Then, will have
3x-3x+4y--y=15-50. -×-=+
4y+y=-15
5y=-15
Divide Both sides by 5
y=-15/5
y=-3
From equation 2
3x-y=30 
3x--3=30
3x+3=30
3x=30-3
3x=27
Divide both side by 3
x=27/3
x=9
Then, x=9 and y=-3 
 
        
                    
             
        
        
        
Answer:
320 hope it helps :)
Step-by-step explanation: