Step-by-step explanation + Answer:
x = 1st job
y = 2nd job
x + y = 22......x = 22 - y
7x + 8.25y = 171.50
7(22 - y ) + 8.25y = 171.50
154 - 7y + 8.25y = 171.50
-7y + 8.25y = 171.50 - 154
1.25y = 17.50
y = 17.50 / 1.25
y = 14 <== 14 hrs at the 8.25 per hr job
x + y = 22
x + 14 = 22
x = 22 - 14
x = 8 <=== 8 hrs at the 7 per hr job
 
        
             
        
        
        
Answer:
20.4 kilograms
Step-by-step explanation:
.4 times 51
 
        
                    
             
        
        
        
So point slope form is y=mx+b where m=slope and b=y intercept so 
in (x,y) form
one solution is x=1 and y=3, also slope is 2 so 
m=2 
subsitute
3=2(1)+b
3=2+b
subtract 2
1=b
equation is 
y=2x+1
tricky answers so simplify them
A: y-1=2(x-3)
distribute
y-1=2x-6
add 1
y=2x-5
not the answer
B: y-3=2(x-1)
distribute
y-3=2x-2
add 3
y=2x+1
correct
the answer is B
        
             
        
        
        
Answer:476
Step-by-step explanation:
if you multiply 14 times 17 times 4 it equals 952 but if you divide it it equals 476
 
        
                    
             
        
        
        
Answer:
A. Area = 5/9 sq.meters
Step-by-step explanation:
Area = (lenght × widht) 

simplified

Hope this helps