Robert has attended 32 out of 40 after-school band practices this year. based on his record of attendance, which is the probability that robert will attend band practice in the future?

The probability that Robert will attend a band practice in future is

Step-by-step explanation:

Topic: Experimental Probability

Given

Number of Band Practices = 40

Number of Attendance = 32

Experimental probability is probability that is determined on the basis of the results of an experiment repeated many times. It is calculated by ratio of the number of times an event occurs to the total number of trials or times the activity is performed.

To calculate the probability that Robert will attend a band practice in future, we make use of the following formula

By Substitution

Hence, the probability that Robert will attend a band practice in future is

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:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: