Answer: the price of each CD before tax is $14.9
Step-by-step explanation:
Let x represent the price of each CD before tax.
Abdul bought 3 CDs that were each the same price. It means that the total cost of the 3 CDs before tax is $3x.
Including sales tax, he paid a total of $47.40. Of that total, $2.70 was tax. It means that
3x + 2.7 = 47.4
3x = 47.4 - 2.7
3x = 44.7
x = 44.7/3
x = 14.9
the price of each CD before tax is $14.9
Answer cannot be simplified but u would get 7.549
Answer:
ggddhbff
Step-by-step explanation:
bxggvxdgbcdthvg
The rule is that for normally distributed data:
- 68% are in the range mean +/- 1*standard deviation
- 95% are in the range mean +/- 2*standard deviation
- 99.7% are in the range mean +/- 3*standard deviation
Then in this case the range is from 7.11 minutes - 3*0.74 minutes to 7.11 minutes + 3*0.74 minutes
This is, 7.11 - 2.22 to 7.11 + 2.22
Equal to 4.89 to 9.33
Then, the answer is the option B.
