Answer:
21.7391%
Step-by-step explanation:
21800/1002.80
7.41% as a decimal is 0.0741. :)
Answer:
1 coin
Step-by-step explanation:
Given that c is number of coins, p the points collected and 20 is the constant.
-The equation for total points is p=20c, therefore, we calculate the number of coins as:

#Hence, Rita only has to collect 1 coin to earn 20 points.
Answer:
X^2 +Y^2 - 2X-4Y= 0
Step-by-step explanation:
From the circle eqn.
(x-a) ^2 +(y-b) ^2 =r^2
a=1, b= 2. r= 3
(x-1)^2 +(y-2)^2 =3^2
(x-1)(x-1)+(y-2)(y-2)=3^2
X^2 - 2x+1+y^2 -4y+4=9
X^2 +Y^2 - 2x-4y+5=9
X^2 +Y^2 - 2x-4y-4=0