Question

A song has 28 beats in 4 seconds. At this rate, how many beats are there in 30 seconds?

Answer 1

Find out how many times 4 fits into 30 to get the multiplierUse this number and multiply it by 28 to get how many there will be in 30 seconds30/4 = 7.5
7.5 x 28 = 210 beats

Answer 2

Answer: 210 beats

Explanation:

Given: A song has 28 beats in 4 seconds.

To find the rate of beats in song we need to divide 28 by 4, we get

⇒ Beats in each second of song=
`(28)/(4)=7\text{ beats}`

To find the number of beats in 30 seconds, we need to multiply 30 to the rate of beats, we get

⇒Beats in 30 seconds of song=
`7*30=210\text{ beats}`

Hence, there are 210 beats in 30 seconds of song.