Question

The high school dance team is learning a new routine to a song that lasts 3 minutes and 41 seconds, or 221 seconds total. Yesterday, they covered the first 45 seconds of the song at practice. They learn an average of 22 seconds of the dance in an hour. Let h represent the time, in hours, it will take the team to learn the entire dance. Which equation represents this situation, and how long will it take?

A. 221 = 22h;

 11 hours
B.221 = 22h  - 45; 12 hours
C.221 = 22h  + 45;  8 hours
D. 221 = 45h  + 22;   5 hours

Answer 1

C. 221=22h +45; 8 hours

Answer 2

Option C.

Explanation:

High school dance team is learning a new routine to a song that lasts 221 seconds.

Yesterday they covered the first 45 seconds for the song at practice.

They learn an average of 22 seconds of dance per hour.

If they learned the dance for h hours then total time taken for routine will be = (22h + 45)

Therefore, equation that represents the this situation will be

22h + 45 = 221

22h = 221 - 45

22h = 176

h =
`(176)/(22)=8`

Total hours taken will be 8 hours.

Therefore, option C will be the answer.