Answer:
5 years ago 
Let Kelly's age be x
Jake's age is 4x
5 years later
Kelly's age is x + 5
Jake's age is 4x+5
The sum of both their ages is 60. The equation will be
x + 5 + 4x + 5 = 60
5x + 10 = 60
5x = 60 - 10
x = 50/5 = 10
So Kelly is (10 + 5) 15 years old.
Jake is (4*10 + 5) = 45 years old
 
        
             
        
        
        
Step-by-step explanation:
6(2+y) = 3(3-y)
=>12+6y= 9-3y
=>6y+3y = 9-12
=>9y= -3
=> y = -1/3
 
        
             
        
        
        
Answer:The answer is t 500 tons
Step-by-step explanation:Because ik