5(x + 30)

x + 30 represents the number of minutes per day he practices
5 is the number of days he practices
so 5(x+30) = the total number of minutes he practices in 5 days

For example, if he practices the piano for 20 minutes per day and the violin for 30 minutes per day, he practices a total of 50 minutes per day. For 5 days that would be 5 x 50 = 250 minutes in 5 days.

Plug that into the equation
5(x+30) = 5(20+30) = 5(50) = 250

5 0

2 years ago

Read 2 more answers

Question 18 plz help <3

Karolina [17]

Answer:

Step-by-step explanation:

3 0

2 years ago

Here are the scores of students on a history test. 57,58,61,61,65,71,73,75,77,78,80,82,92 Notice that the scores are ordered fro

trasher [3.6K]

I hope this helps the five numbers on the bottom 71 7374 7577 is the interquartile range