A recording of the current weather conditions last 3/4 minute. If the recording plays repeatedly , how many times would it play in 1 hour?

Respuesta :

45 times

1 hour = 60 minutes

60 multiplied by 3/4 = 180/4 = 45

Answer:

The recording repeated  plays 80 times in 1 hour

Step-by-step explanation:

A recording last [tex]\frac{3}{4}[/tex] mins

Let x be the number of times it repeats in 1 hour

Using ratio and proportion,

[tex]1\:time=\frac{3}{4} mins\\ x\:times=1\: hour[/tex]

But [tex]1\:hr=60\:mins[/tex]

This implies that

[tex]1\:time=\frac{3}{4} mins\\ x\:times=60\: mins[/tex]

[tex]\frac{3}{4}x=60[/tex]

[tex]x=\frac{4\times60}{3}[/tex]

[tex]x=80\:times[/tex]

Hence the recording repeatedly  plays 80 times in 1 hour