Thursday

July 31, 2014

July 31, 2014

Posted by **Sam** on Thursday, February 14, 2013 at 11:57pm.

Reptiles 5%

Birds 5%

Fish 10%

Cats 35%

Dogs 45%

I did 5% of 30 = .05 x 30 = 1.5

30/1.5 = 20 third graders

BUT I am thinking I am doing something wrong? Where did I go wrong?

Should it be 30/.05 = 600 students were surveyed?

I want to understand my steps on where I messed up? Could you show me?

- Math on graphs -
**Reiny**, Friday, February 15, 2013 at 12:12amJust think about your answer of 20 third graders.

If you have 20 third graders, how can 30 of them have birds ????

Do you know algebra? then ...

let the number of students be x

.05x = 30

x = 30/.05= 600

If you don't know algebra ...

5% of the students = 30

so 1% of the students = 6 , (divide by 5)

then 100% = 6(100) =600

**Related Questions**

Math help - If 20 3rd graders owned birds, how many third graders were surveyed...

Math - A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet...

4th grade math - Endangered species Group number clams 62 birds 14 more than ...

Math - A Woman has cat's and birds. When asked how many of each she has she ...

Math - Jean surveyed 25% of all eighth graders and 75% of all 7th graders. John ...

Math - A Woman has cat's and birds. When asked how many of each she has she ...

math - The lunchroom workersare giving away free cookies today. They gave the ...

math 156 - a pet shop has a total of 17 dogs and birds. Altogether there are 48 ...

math - A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet...

math - Ok, the problem says: a Middle school has 125 6th graders, 150 7th ...