, 19.10.2019brandon0227

# Your friend can clap his hands 28 times in 12 seconds. how many times can your friend clap his hands in 0.5 minutes?

70 claps

Step-by-step explanation:

28 claps in 12 seconds

28/12 = 2.33 clap in 1 second

By the way, 0.5min = 30 seconds

Hence, 2.33 * 30 = 70

Step-by-step explanation:

x / 2.25 seconds = 28 times / 12 seconds

multiply by sides by 2.25 seconds

x / 2.25 seconds * 2.25 seconds = 28 times / 12 seconds * 2.25 second

x = 2.3333333  times/ second * 2.25 seconds

x = 5.8333

Step-by-step explanation:

12 seconds for 28 claps

1 second for (28/12) claps

? claps for 1.75 mins?

1.75 minutes = 105 seconds (1.75×60 = 105)

105 seconds for (28/12)×105 claps

= 245 claps

6 times

Step-by-step explanation:

28claps =12seconds

? = 0.5minutes

60seconds=1minute

? =0.5 minutes

(cross multiply)

60*0.5/1 = ?

?=30seconds

28claps = 12secs

? =30secs

28*30/12 =?

?=70claps

315 times

Step-by-step explanation:

We know that the friend can clap his hands 28 times in 12 seconds. First, we need to know how many times can he clap his hands in 1 second:

To do it we have to divide the times he can clap his hands by the time in seconds:

28/12 = 2.333333

He can clap his hands 2.333333 times in 1 second:

Now we want to know how many times will he clap his hands in 2.25 minutes

We have to change 2.25 minutes into seconds:

1 (minute) = 60 (seconds in 1 minute)

2.25 (minutes) * 60 (seconds in 1 minute) = 135 seconds

After we get the seconds he is going to clap his hands, we have to multiply the times he claps times the seconds:

2.3333333 times * 135 seconds = 315

315 times in 2.25 minutes

60 seconds in a minute

12 goes into 60, 5 times,
So 5 * 28 = 140
140 claps per minute

0.5 minute is 30 seconds, half a minute so divide by 2,
140/2 = 70

70 times every 0.5 minutes

Your friends can clap their hands 245 times in 1.75 minutes.

Step-by-step explanation:

First of all, you should know how many seconds represents 1.75 minutes, because the amount of applause your friends can make is in that measure of time.  In order to make this conversion, a simple rule of three is made, knowing that 1 minutes is 60 seconds:

If 1 minute is 60 seconds, how many seconds are 1.75 minutes?

Knowing that your friend can clap his hands 28 times in 12 seconds and knowing that 1.75 minutes is 105 seconds, you can perform a rule of three again:

If they can clap their hands 28 times in 12 seconds, how many applause can they make in 105 seconds?

Then your friends can clap their hands 245 times in 105 seconds, which is 1.75 minutes.

70 times

Step-by-step explanation:

12 * 5 = 60

28 * 5 = 140

140/2 = 70

Hello there! He can clap his hands 70 times in 0.5 minutes.

Remember: Since a minute is 60 seconds, half a minute is 30 seconds, so 0.5 minutes is equal to 30 seconds.

To solve this problem, start by finding the unit rate of claps per second.

28 claps ÷ 12 seconds = 2 and 1/3 claps a second.

Now, take what I said in the reminder, and multiply the unit rate (time for one second) by 30 (time for 30 seconds).

2 and 1/3 x 30 = 70

So, your friend can clap his hands 70 times 0.5 minutes.

I hope this helps and have a great rest of your day!

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