SA=4pir^2
c=2pir
so
c=30
30=2pir
divide 2
15=pir
divide by pi
15/pi=r
sub
SA=4pir^2
SA=4pi(15/pi)^2
SA=4pi(225/pi^2)
SA=900/pi squaer feet
if use pi=3.141592
SA=286.47889756541160438399077407053 square feet or about 286 square feet
Answer:
the answer to this question is C. D: −2≤x≤2; R: −2≤y≤2
Number of sodas sold = 130
Number of hot dogs sold = 65
Step-by-step explanation:
Given,
Combined number of sodas and hot dogs sold = 195
Let,
x represent the number of sodas sold
y represent the number of hot dogs sold
According to given statement;
x+y=195 Eqn 1
x = 2y Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 3
Putting y=65 in Eqn 2
Number of sodas sold = 130
Number of hot dogs sold = 65
Keywords: linear equation, substitution method
Learn more about substitution method at:
#LearnwithBrainly
Answer:
7 times
Step-by-step explanation:
So since it rings every half hour, there should be 2 rings every hour, if not you are not on our planet. (60 mins in an hour, 30 mins = 1, so 60 mins =2)
So since it rings for 3 full hours, we get an initial step of 3 * 2 = 6 rings
Then there is another 1/2 ring because 3 and a 1/2 hours. So 6+1=7
hope i helped :) im not sure what you mean by model :(
22/29 = 0.76
0.76*100 = 76
You got a 76%