Answer: it’s -5/2 I think. You might have to dive idea if it doesn’t let you put the fraction, but that is the rise over run or y over x
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
$24 equals 7 pencils, each x dollars worth, and the $10 left over: 24=7x+10.
Solve for x, 24-10=7x
14=7x
$2=x
The cost of each pencil is $2
Its 13 because your up or if detailed 12.6
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.
