The answer is 9/23 you simply both sides of the equation, subtract 7x from both sides, divide both sides by -23
Answer:
$|-7000|
Step-by-step explanation:
divide 84000 by 12 = 7000
Answer:
5 days
Step-by-step explanation:
He eats 3 cups a day and its a 15 cup bag,
15 divided by 3 equals 5.
So he can feed Pickles for 5 days from the bag.
Let

denote the number of minutes spent brushing his teeth, and let

be the mean and

the standard deviation for this distribution.

The z-score corresponding to this probability is approximately

, which means

Next, (note the sign change)

The corresponding z-score is approximately

, so you have

Solving the two equations for

and

, you'll find that the mean is approximately

and the standard deviation is approximately

.