A roulette wheel has 38 slots in which the ball can land. Two of the slots are green, 18 are red, and 18 are black. The ball is equally likely to land in any slot. The roulette wheel is going to be spun twice and the outcomes of the two spins are independent. The probability that it lands on red at least once is:

a. 0.5
b. 0.25
c. 0.4488
d. 0.2244

0.7230

Step-by-step explanation:

There are 18 red slots out of 38 total slots. The probability that the ball lands on red at least once is 100% minus the probability that it does not land on red on either try:

The probability that the wheel lands on red at least once is 0.7230.

All of the provided answer choices are incorrect.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

the answer is simply just 6n add the two together as they have an n