John has us and foreign stamps in his album. the ratio of the numer of us stamps to foreign stamps is 5: 2. after paul gives him 12 foreign stamps the ratio becomes 2: 1. find the number of us stamps he has.

The number of U.S stamp he has is 120.

Step-by-step explanation:

John has us and foreign stamps in his album. the ratio of the number of U.S stamps to foreign stamps is 5:2.

After Paul gives him 12 foreign stamps the ratio becomes 2:1.

Now, to find the number of U.S stamps.

Let the U.S stamps be

And the foreign stamps be

Now, to solve by using cross multiplication method:

So, the ratio is:

By cross multiplying we get:

Dividing both sides by 2 we get:

......(1)

Now, after Paul gives him 12 foreign stamps the ratio becomes:

By cross multiplying we get:

Putting the value of as we get in above equation (1):

Multiplying both sides by 2 we get:

Subtracting both sides by 4y we get:

The number of foreign stamps = 48.

Now, to get the number of U.S stamps by putting the value of in equation (1):

Therefore, the number of U.S stamp he has is 120.

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140