Avolleyball coach plans her daily practices to include 10 minutes of stretching, 2/3 of the entire practice scrimmaging, and the remaining practice time working on drills of specific skills. on wednesday, the coach planned 100 minutes of stretching and scrimmaging. how long, in hours, is the entire practice?

Time for the entire practice is 2.25 or 2 1/4 hours

Step-by-step explanation:

According to the question the volley ball coach daily plan practice includes stretching ,  scrimmaging and she use the remaining practice time working on drills of specific skills.

let the entire time required for practice = y minutes

Stretching consumes 10 minutes, mathematically

stretching = 10 minutes

scrimmaging = 2/3 × y

Drills of specific skills = y - (2/3 × y) - 10 = 1/3 y - 10 minutes

On Wednesday she had

stretching + scrimmaging  = 100 minutes

we all know her stretching daily timing is 10 minutes and scrimmaging timing is 2/3 × y

Therefore,

10 + 2/3  y = 100

100 - 10 = 2/3 y

90 = 2/3 y

multiply both sides by 3

90 × 3 = 2/3 y × 3

270 = 2 y

y = 135 minutes

since the answer is suppose to be in hours

60 minutes = 1 hour

135 minutes =  ?

135/60 = 2.25 hours or 2 1/4 hours