Answer: 1,6,11,16,21,26
Step-by-step explanation:
The common difference is 5 (n+5)
 
        
                    
             
        
        
        
60c+80=287
Let c stand for the cost of one square foot. with 60 square feet you get 60c. then add 80 for the installation fee.
        
             
        
        
        
Answer:
The ratio between won and lost is 
Step-by-step explanation:
<u><em>The question in English is</em></u>
A table tennis team won 21 games and lost 12 games, what is the ratio between won and lost?
Let
x ------> the number of games won
y -----> the number of games lost
we have


we know that
To find the ratio divide the number of games won by the number of games lost
so

substitute the values

Simplify

 
        
             
        
        
        
P = 50N + 2500 <== ur equation
for 23 copies...sub in 23 for N
P = 50(23) + 2500
P = 1150 + 2500
P = 3650 <==
        
                    
             
        
        
        
Answer:
step 2
Step-by-step explanation:
The student first made an error in the step 2.
Because if we simplify the equation A in step 1, we should distribute the right side of the equation following the rule a(b-c) = a*b +a*(-c)
So, it would be
–7y = (-7)*(16)+(-7)*(-2z)
=> -7y = -112 + 14z