Answer:
Q+D = 65, multiply both sides by 2525Q + 25D = 162525Q + 10D = 950  subtract to get            15D = 675               D = 675/15 = 135/3 = 45 dimes               Q = 65-45 = 20 quarters25(20) + 10(45) = 500+450 = 950
 
        
             
        
        
        
Answer:
no no
Step-by-step explanation:
nah nahnah nahnah nahnah nahnah nahnah nahnah nah
 
        
                    
             
        
        
        
Answer:
49
Step-by-step explanation:
4 : 3
x : 21
ok so we can divide 21 by 3 and get 7.
7 × 4 = 28
4 : 3 = 28 : 21
now we just 28 + 21 = 49 :D
 
        
             
        
        
        
54 shots. 9 out of 12 means she is making 75% of her shots. 75% of 72 is 54.
        
             
        
        
        
Answer:
180
Step-by-step explanation:
let x = total units of electricity after 250 units
the total units of electricity consumed can be determined using the formula below 
80 + 7.3x = 1248
7.3x = 1248 - 80 
7.3x = 1168
divide both sides of the equation by 7.3
x = 1168 / 7.3 
x = 160
total electricity consumed = 160 + 20 = 180
160