120x+45y+50z=C
This equation models this situation where C is the total cost
Answer:

Step-by-step explanation:
Here we have a number in the ones place, 2, and a number in the tenths place, 4.
- Any number in front of the decimal becomes the whole number in front of the mixed number fraction
- The numerator will be any number after the decimal
- The denominator will be the value of the place the number after the decimal is in
Here our whole number is 2, the numerator is 4, and it is in the tenths place, so our denominator will be 10
Our fraction becomes
which then turns into the improper fraction
and then simplifying if needed becomes
after dividing the fraction by 2
Answer: 29 with the Remainder of 4
Step-by-step explanation:
1 and 7 are the answer to this
All the probabilities add up to 1, so the table does indeed describe a distribution.
The mean is given by

The standard deviation is given by

. You have

so the standard deviation is approximately

.