Answer:
x = 8/13
Step-by-step explanation:
6 - 3x - 3/5(15x + 20) = 7(2x/7 - 2) - x
6 - 3x - 9x - 12 = 2x - 14 - x
6 - 12 + 14 = 2x - x + 3x + 9x
8 = 13x
x = 8/13
 
        
             
        
        
        
Answer:
632.4
Step-by-step explanation:
 
        
                    
             
        
        
        
 11 lbs 5 oz - 1 lb 15 oz...we are gonna have to borrow...there is 16 oz in a lb.
11 lbs 5 oz....we r going to borrow 1 lb from the right side and add it to the left side making it 10 lbs and 21 oz...u see what I did...I borrowed 1 lb from the right side and added 16 oz to the left.Now we can subtract.
10 lbs 21 oz - 1 lb 15 oz = 9 lbs 6 oz <== ur answer
        
                    
             
        
        
        
1. Eyeballing the data, the best fit will be pretty close to a line between the leftmost point and the rightmost point.
We estimate those points as (4,220) and (28,470)
The point point form for a line joining (a,b) and (c,d) is
(c-a)(y-b) = (d-b)(x-a)
(28 - 4)(y - 220) = (470 - 220)(x - 4)
24(y - 220) = 250(x-4)
24y - 5280 = 250x - 1000
24y = 250 x + 4280
y = (250/24) x+ (4280/24)
Approximately that's,
y = 10.4 x + 178
Answer: 4th choice, 10.4x + 180
2. For 48 wheelbarrows,
y = 10.4(48)+180 = 679.2
Answer: 679.2 liters of sand