A ballet troupe has 28 dancers, including 4 new members. Express the ratio of new members to the total number of dancers in the simplest fraction for.

112

Step-by-step explanation:

so what you do is that you do 28*4 and then will get you your answer

28:4

Step-by-step explanation:

Why because 28 is how much dancer are and 4 is how many new dancers are

Robot will take  hour to complete each task.

The robot can complete  tasks in one hour.

Step-by-step explanation

We have been given that a robot can complete 8 tasks in 3/10 hour. Each task takes the same amount of time.

To find the time taken by robot to complete each task we will divide total time taken to complete 8 tasks by 8 as:

Now we will convert division problem into multiplication problem by flipping the 2nd fraction.

Therefore, robot will take  hour to complete each task.

To find tasks completed by robot in one hour we will use proportions.

Therefore, the robot can complete  tasks in one hour.