Answer:
Cost to paint 4 walls of a room = $24.20
Cost of painting 3 walls of a room =$18.15
Step-by-step explanation:
(a) Abby purchased 4 2/5 gallons of paint to paint 4 walls of a room in her house.
![4\frac{2}{5}gallons \ of \ paint = \frac{4*5+2}{5} =\frac{22}{5}](https://tex.z-dn.net/?f=4%5Cfrac%7B2%7D%7B5%7Dgallons%20%5C%20of%20%5C%20paint%20%3D%20%5Cfrac%7B4%2A5%2B2%7D%7B5%7D%20%3D%5Cfrac%7B22%7D%7B5%7D)
1 gallon cost = 5.50
So 22/5 gallons cost = ![\frac{22}{5} * 5.5= 24.20](https://tex.z-dn.net/?f=%5Cfrac%7B22%7D%7B5%7D%20%2A%205.5%3D%2024.20)
Cost to paint 4 walls of a room = $24.20
(b)cost of painting 4 walls of a room = $24.20
cost of painting 1 wall of a room = ![\frac{24.20}{4} =6.05](https://tex.z-dn.net/?f=%5Cfrac%7B24.20%7D%7B4%7D%20%3D6.05)
Cost of painting 3 walls of a room = 6.05 * 3= $18.15
Answer:
c = 43.96
Step-by-step explanation:
First you have to find the diameter of the trampoline which would be 14
Next plug it into the circumference formula c = dπ
c = (14)(3.14)
c = 43.96
Answer: J
Step-by-step explanation:
x=8, so substitute and Length=12 Width=9
Answer:
b 3x +7y =59
Step-by-step explanation:
x is water balloons at 3 each and y is t-shirts at 7$ each.
Answer: 0.0791
Step-by-step explanation:
Given : The probability that a baseball player will get a hit in any one at bat is 0.250.
Let x be the first hit.
According to the geometric probability , the probability that x (th) trial is the first success =
, where p is the probability of getting success in each trial.
As per given p= 0.250
Then, the probability that he will get his first hit on his 5th at bat will be :
![P(X=x)=(1-0.25)^{5-1}(0.25)\\\\=(0.75)^4(0.25)\\\\=0.0791015625\approx0.0791](https://tex.z-dn.net/?f=P%28X%3Dx%29%3D%281-0.25%29%5E%7B5-1%7D%280.25%29%5C%5C%5C%5C%3D%280.75%29%5E4%280.25%29%5C%5C%5C%5C%3D0.0791015625%5Capprox0.0791)
Hence, the probability that he will get his first hit on his 5th at bat is 0.0791 .