Answer:
$16.25 $15.95 $15.75
Step-by-step explanation:
because a 15% tip is $3.00
Answer:
Z-score = -1.285
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 17.6 seconds
Standard Deviation, σ = 2.1 seconds
Formula:
For x = 14.9, we have:
A z-score to be unusual if its z-score is less than -2.00 or greater than 2.00.
Thus, the z-score is not unusual as it lies in the range [-2.00, 2.00]
move the -4 to the other side
X = 11 + 4
X = 15
Solving the expression
we get: 
Step-by-step explanation:
Solving the expression: 
Solving by cross multiplying:

So, solving the expression
we get: 
Keywords: Solving Fractions
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