Step-by-step explanation:
The mean is 27 and the standard deviation is 4.
23 is 1 standard deviation below the mean, and 31 is 1 standard deviation above the mean. According to the empirical rule, 68% of the population is between -1 and +1 standard deviations.
68% of 1200 is 816.
19 is 2 standard deviations below the mean, and 35 is 2 standard deviations above the mean. According to the empirical rule, 95% of the population is between -2 and +2 standard deviations.
95% of 1200 is 1140.
Answer:
<u>$192</u>
Step-by-step explanation:
5% = 0.05
160 x 0.05 = $8 (sales tax)
15% = 0.15
160 x 0.15 = %24 (tip)
$8 + $24 = 32
$160 + $32 = $192
Answer:
"Real World" Math Drama. ...
Step #1: Stop and Think Before Doing Anything. ...
Step #2: English-to-Equation Translation. ...
Step #3: Solve for Whatever You're Interested In. ...
Step #4: Make Sure You Understand the Result. ...
Step #5: Use Your Result to Solve Other Problems. ...
Wrap Up.
Step-by-step explanation:
Answer:
$33.60 would be the total cost
this is using the straight line depreciation formula. you take the initial amount and subtract the amount that it loses each year times x
