you spin the spinner once. what is p(not prime)? write your answer as a percentage. %

Explanation:

Step1: Identify prime and non - prime numbers

The numbers on the spinner are 1, 2, 3, 4, 5. Prime numbers among them are 2, 3, 5. Non - prime numbers are 1, 4.

Step2: Calculate the probability

There are 5 total possible outcomes. The number of non - prime outcomes is 2. The probability formula is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$. So $P(\text{not prime})=\frac{2}{5}$.

Step3: Convert to percentage

To convert a fraction to a percentage, we use the formula $\text{Percentage}=P\times100%$. So $\frac{2}{5}\times100% = 40%$.

Answer:

40%