Final answer:
The proportion of cows to the total animals on a farm, with 78 cows out of 280 total animals, is approximately 28% when rounded to the nearest integer.
Step-by-step explanation:
The student has asked how to represent the proportion of cows to the total number of animals on a farm as a percentage. To calculate this, we use the total number of cows (78) and divide it by the total number of animals (280) on the farm. This will give us a decimal number, which we can then convert to a percentage by multiplying by 100.
Let's do the calculation:
Divide the number of cows by the total number of animals: 78 ÷ 280 = 0.27857...
Multiply this result by 100 to get a percentage: 0.27857... × 100 = 27.857...
Round this to the nearest integer: Approximately 28%.
So, there are 78 cows in a farm which has 280 animals in total. This proportion as a percentage is 28%, correct to the nearest integer.