Answer: <u>3.7</u>
Step-by-step explanation: 3.706, but since you need it rounded to the nearest tenth its 3.7. If you put both equations on a graph, they intercept. We use the x coordinate in this intersection as the answer.
 
        
             
        
        
        
425 is decreased to 319.
The above statement means that a number should be deducted from 425 to get the difference of 319.
Let x be the unknown number.
425 - x = 319
425 - 319 = x
106 = x
106 is the unknown number.
It can be phrased like this: 425 decreased by 106 is 319.
        
             
        
        
        
Answer:
8
Step-by-step explanation:
Your son is half your age minus 9, so half of 34 is 17. 17 - 9 = 8
 
        
             
        
        
        
Answer:
48 cups
Step-by-step explanation:
 4 gallons = 64 cups
1 gallon =  64 ÷ 4 
1 gallon = 16 cups
3 gallons = 16 * 3 = 48 cups