Answer:
(-5,-8)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = 7.
Step-by-step explanation:
-5x + 18 = 3x - 38
18 + 38 = 3x + 5x
56 = 8x
x = 7.
 
        
             
        
        
        
Answer:  D. 7
Step-by-step explanation:
The problem tells you that x = 0 so replace everything that is x in the equation with 0 so the problem becomes
7 + (-3(0)^2)
Now we just solve the problem normally.
solve the problem in the parenthesis first, we must multiply -3 times 0^2 is 0
so now our problem is 7 + 0 which is 7
 
        
             
        
        
        
Answer:  
Step-by-step explanation:
Given : A man earned x pesos in 10 days and spent y pesos during each of those days. 
i.e. Total earning in 10 days = x
Earning per day = [By unitary method]    (1)
    [By unitary method]    (1)
Money spent per day =y      (2)
We know that

i.e. Subtract (2) from (1), we get

Hence, the expression to determine how many pesos he saved per day will be:-
