Johanna is trying to find the probability that a cup will land open end up. she takes a cup and tosses it in the air 1000 times and each time records if it lands open end up or open end down. she finds that 630 times the cup lands open end up. do the outcomes of the cup appear to be equally likely?

The answer is C

Step-by-step explanation:

it is c because For outcomes to be equally likely they need to have probabilities that are relatively close to each other. The probabilities of the two outcomes are not close to each other and there is a pretty large sample so the correct answer is No, as the probability of each outcome is not equal.

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: