# math

the ratio of dogs to cats in the neighborhood was 3 to 7. If a total of 210 dogs and cats were in the neighborhood, how many cats were there?

1. 👍 5
2. 👎 1
3. 👁 866
1. The above answer is clearly wrong, since the total animals is only 210, not just the dogs.

d/c = 3/7
7d = 3c

d+c = 210
3d+3c = 630
3d+7d = 630
10d = 630
d = 63
so, c=147

1. 👍 2
2. 👎 0
2. or,

3x+7x = 210
10x = 210
x = 21
dogs = 3x = 63
cats = 7x = 147

1. 👍 3
2. 👎 0
3. I got 490 doing cross multiply seven Times 210 divided by 3

1. 👍 0
2. 👎 2
4. 147 cats

1. 👍 1
2. 👎 0

## Similar Questions

1. ### math

there are 6 times as many dogs as cats. if the total of number dogs and cats is 21, how many dogs are there?

2. ### Math

Write the ratio of dogs to cats in simplest form. 12 dogs, 16 cats

3. ### math

a veterinarian survey 26 of his patrons.e discovers that 14 have dogs ,10have cats ,and 5 have fish .our have dogs and cats ,3 have have dogs and fish ,and one has a cat and fish .if no one has all three kinds of pets ,how many

4. ### math

Suppose the mean of dogs a pet shop grooms each day is known to be 14.2 dogs. If a sample of n=12 days is chosen and a total of 178 dogs are groomed during those 12 days, then the sampling error is?

1. ### math

Claire has a part-time job walking dogs Monday through Friday. Business has really increased. She is walking 3 more dogs per day than she did last week if she walked a total of 35 dogs this week, how many dogs did she walk per day

2. ### language

What does " it's raining cats and dogs mean" Because I tried to look it up but all it says is "it is an idiom" please and thank you

3. ### Math

The ratio of dogs to cats at an animal shelter is 3 to 2. How many dogs are at the shelter if there is a total of 30 animals?

4. ### math

A certain pet store has only cats and dogs. The ratio of the number of cats to the number of dogs in the pet store is 2:3. 1/4 of the cats and 1/2 of the dogs wear collars. If there are 48 animals that wear collars, how many

1. ### Math

The ratio of dogs to cats are 2 to 3 if there is 15 total animals how many cats are there

2. ### math

there are 15 dogs and 5 cats what is the ratio for the dogs and the cats

3. ### Math

Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, don't have cats complete the following table. --- 7 ---- who have cats,have dogs, don't have dogs,