If 30 sixth graders own birds, how many sixth graders were surveyed?

Question

I couldn't  upload the chart but the data is below

 

Dogs: 45%

Cats:35%

Fish:10%

Birds:5%

Reptiles:5%

 

Please help me. And explain the steps please. Thanks.

 

I am in the 6 grade BTW(By the way)

Answer 1

Hi Taryn--

 

So what you need to do here is figure that "30 kids is 5% of SOME number."

 

"per cent" is Latin for "out of 100," so 5 % is literally 5 out of 100

 

Now--if it were 5 kids with birds, you would know that there were 100 total kids. But it's 30 kids, which is way more than 5; so your total number of kids is going to be way more than 100.

 

How many times bigger than 5 is 30? (6 times, because 5 x 6 = 30, or you can think of it as 30 divided by 6 = 5)

 

So if you had to do 5 TIMES 6 to get to 30, you have to do 100 TIMES 6 to get the total number of students. What's 100 x 6?

 

Right, 600. So your total number of students is 600. Let's double check:

 

What's 600 x .05 ?  30. Check!

 

Have a good day,

 

Matt