Question

Very easy

Answer 1

so easy, you'll tell us

Answer 2

Listen jerk, if your not going to help then go on

Answer 3

Well if it's so easy why don't you do it yourself, lol.

Answer 4

God, why are people on openstudy so stupid

Answer 5

if your going to help then do it but if your not go on, i don't have time for this

Answer 6

Ok, well.

"40% of people who have dogs don't have cats."

So let's work backwards here. You need to find 40% of a number to 8, and to do that you multiply by 0.4.

x * 0.4 = 8

So try to find x by dividing 0.4 on both sides.

0.4x/0.4 = 8/0.4

x = 8/0.4

So what do you get with this?

Answer 7

20

Answer 8

Yes, so 20 people have dogs.

Answer 9

Now we have two values in one row, so we can find the toal of that row.

20 + 8 = People who don't have cats.

Answer 10

Now we know 20 people total were surveyed. We know that 28 don't have cats. So we can subtract this from 40 to find out how many DO have cats.

40 - 28 = ?

Answer 11

12

Answer 12

Yep. 12 people don't have cats. Now, 7 people who have cats don't have dogs. Do you know how many people have cats and dogs?

Answer 13

so how will we figure out what the total is for the people who have dogs and cats?

Answer 14

Well we know that 12 people total have cats. 7 o those people don't have dogs. we don't know how many have dogs and cats.

x + 7 = 12

Answer 15

x=5?

Answer 16

Yep.

Answer 17

5 12
20 28
Is this right?

Answer 18

Yeah.

Answer 19

Your possitive these are right, i just need to pass this

Answer 20

Yeahhhh. You can prove it. If you just add the values, it should equal their totals.

Answer 21

ok, can you help me with like 4 more pleeease?

Answer 22

I have to take a phone call in about 2 minutes, sorry. >_<

Answer 23

Good luck with that though. D:

Answer 24

ok, thanks