A herd of 37 horses has 4 white and some black horses. What is the ratio of black horses to all horses?
Use the same principle as here:
https://www.jiskha.com/questions/1823928/a-herd-of-20-horses-has-4-white-and-some-grey-horses-what-is-the-ratio-of-grey-to-all
To find the ratio of black horses to all horses, we need to determine the number of black horses in the herd.
Given that the herd has 37 horses and only 4 of them are white, we can subtract the number of white horses from the total number of horses to find the number of black horses:
Number of black horses = Total number of horses - Number of white horses
= 37 - 4
= 33
Now, we can express the ratio of black horses to all horses as a fraction by dividing the number of black horses by the total number of horses:
Ratio of black horses to all horses = Number of black horses / Total number of horses
= 33 / 37
Therefore, the ratio of black horses to all horses is 33:37.