Sales Hester sells televisions. She earns a fixed amount for each television and an additional $20 if the buyer gets an extended
1 answer:
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Answer:
28.26
Step-by-step explanation:
The area of the quarter circle is the area of the circle / 4. Thus, the area is =
= 28.26 square centimeters
Answer: and
Step-by-step explanation:
First, we are told "sum of 5 times one number, x, and 4 times a second number, y, is 75":
(1)
Then, we are told "he sum of the two numbers is 18":
(2)
At this point we have our system of equations and now we are able to find the values of and
.
So, let's begin by isolating from (2):
(3)
Substituting (3) in (1):
(4)
Finding :
(5) This is the value of
Substituting (5) in (1):
(6)
Finding :
(7)
(8) This is the value of