Final answer:
The minimum and maximum temperature can be determined by subtracting and adding 4 to the average June temperature of 90 degrees Fahrenheit.
Step-by-step explanation:
To find the minimum and maximum temperature given that the average June temperature is 90 degrees Fahrenheit and can be about 4 degrees warmer or colder, we can write and solve an equation.
Let's define x as the actual temperature in June.
So, the minimum temperature would be 90 - 4 = 86 degrees Fahrenheit and the maximum temperature would be 90 + 4 = 94 degrees Fahrenheit.
Therefore, x = 86 and x = 94 are the minimum and maximum temperature respectively.