Answered

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The ratio of dogs to cats is 5 to 7. There are 45 dogs. How many trucks are there?

Sagot :

You have the ratio of dogs to cat is 5 to 7.

To determine how many cats are for 45 dogs, you simply consider that regardless the number of the dogs the ration must be equal.

Then, if x is the unknown number of cat for 45 dogs, you have:

5/7 = 45/x

You solve the previous equation for x as follow:

5/7 = 45/x multiply both sides by x to cancle the x in the denominator

(5/7)x = 45 multiply by 7 and divide by 5 both sides

x = 45(7/5)

x = 63

Hence, there are 63 cats whene there are 45 dogs

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