Answer: The answer is 3.
Step-by-step explanation: We are given to find the unit rate for 75% high-fibre chimp food to 25% high -protein chimp food.
For that, we need to divide the quantity of fibre in food by the quantity of protein present in the food.
Fibre present in the food is given by
[tex]f_f=75\%=\dfrac{75}{100}=\dfrac{3}{4}.[/tex]
And protein present in the food is
[tex]f_p=25\%=\dfrac{25}{100}=\dfrac{1}{4}.[/tex]
Therefore, the unit rate of high-fibre chimp food to high-protein chimp food is
[tex]U=\dfrac{\frac{3}{4}}{\dfrac{1}{4}}=3.[/tex]
Thus, the answer is 3.
