79.8 is the discount of the price of an armchair that originally cost $266.00......... because 266.00÷30%=79.8
X^2 + 4x + 16 is the answer
This is a linear equation
y=mx+b
y=50x+400 (when x equals the number of hours played)
1000=50x+400
*first, isolate the variable (x)
-50x=-1000+400
*divide by -50 to get x by itself
x=20+8
The answer is x=28
Answer:
5 months
Step-by-step explanation:
Given :The bank withdraws $15 from Betsy’s checking account as a service fee every month.
To Find : Betsy has budgeted $75 for the next few service fees. For how many months will the service fee be covered?
Solution :
Since we are given that $15 is service fees for 1 month
So. $1 is service fee for month = 
So, $75 is service fee for months = 
= 
Hence$75 service charge will be covered for 5 months .
Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .
Step-by-step explanation:
Given : Time taken by Kevin to clean a stadium = 5 hours
Rate of work done by Kelvin =
Time taken by Chris to clean a stadium = 3 hours
Rate of work done by Chris =
Let t be the time taken by both of them to clean the stadium together.
According to the question , we have
Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

hours
[∵ 1 hour = 60 minutes]
Hence, It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .