Question

Some vinyl records (let's call them "Oldies") rotate at the rate of 78\,\text{rpm}78rpm78, start text, r, p, m, end text (revolutions per minute). The chart below shows revolutions per minute for three different tracks on another type of vinyl record (called "Goodies"). Which has a greater rate of revolutions per minute, Oldies or Goodies?

Answer 1

The answer is oldies.0

Explanation:

I wanted to give a short answer from the other lad here since I was a little bit confused.

Answer 2

Completed Question

The chart for the three different tracks on another type of vinyl record (called "Goodies") is:

`\left|\begin{array}c&$Track 1 &$Track 2 &$Track 3\\$Minutes&3&4&5\\$Revolutions&135&180&225\end{array}\right|`

Answer:

Oldies

Step-by-step explanation:

For the three tracks (Goodies), we determine the revolution rate per minute.

`\text{Revolution rate per minute =}$Number of Revolutions / $Number of Minutes`

`=(135)/(3) =(180)/(4) =(225)/(5)=45$ revolutions per minute`

Oldies = 78 rpm

Goodies = 45 rpm

Since 78 is greater than 45, the Oldies have a greater rate of revolutions per minute.