The mean amount of sleep needed for adults is 420 minutes per night. If the standard deviation for adult sleepers is 30 minutes, what is the probability an adult will sleep less
than 435 minutes per night? Round your answer to the nearest thousandth.

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

answer: 88

step-by-step explanation: