Answer:
10. 0.20
11. country
12. Hip-Hop and R&B, 3/10
13. Rock, 0.05
Step-by-step explanation:
10. for the boys, pop= 10% and country= 10%. add them together to get 20% and write that as a decimal, which is 0.20
11. 1/5 of 100% is 20%, and 20% of girls chose country as their favorite
12. Hip-Hop and R&B are the favorites for the most boys at 30% each. write that as a fraction of 100% which is 3/10
13. Rock is the least favorite among the girls at 5%, and 5% as a decimal is 0.05
For number 9 it's x+8= 14 and 7x=21
For number 10 the answer is that Beth is correct because the only number that could be replaced for x would be 2. There is no number besides 2 that you could put in the equation x+3=5 to get the answer 5.
Answer
Let t be number of minutes since tap is opened
water is increased by 20 gallons of water per minute.
sugar increase rate of 3 pounds per minute
water :- W(t) = 350 + 10 t
sugar :- S(t) = 10 + 3 t
concentration
C(t) = 
at t = 15 minutes
C(15) = 
C(15) = 
C(15) = 0.11
at beginning t = 0 minutes
C(0) = 
C(0) = 
C(0) = 0.0286
C(15) > C(0)
hence, concentration is increasing as time is passing.
Volume = πr²h
circumference = 2πr = 2, Height, h = 204
2πr = 2
πr = 2/2
πr = 1
r = 1/π
Volume = πr²h = π*(1/π)² * 204 = 204/π
Volume = 204/π cubic length or ≈ 64.935 cubic length
I hope this helps.
Answer:
0.78 x 10^ 0
Step-by-step explanation: