Answer:
C. The value of z has to be greater than 1
Step-by-step explanation:
![15 - 15z < 0 \\ - 15z < - 15 \\ 15z > 15 \\ z > 1](https://tex.z-dn.net/?f=15%20-%2015z%20%3C%200%20%5C%5C%20%20-%2015z%20%3C%20%20-%2015%20%5C%5C%2015z%20%3E%2015%20%5C%5C%20z%20%20%3E%201)
Answer:
a. 6 commercials.
b. 12 commercials.
Step-by-step explanation:
a. You know that the entire commercial break is 3.6 minutes.
Then, if each commercial takes 0.6 minutes, you need to divide 3.6 minutes by 0.6 minutes in order to calculate the number of commercials that will be played.
Therefore, you get:
![commercials=\frac{3.6\ minutes}{0.6\ minutes}\\\\commercials=6](https://tex.z-dn.net/?f=commercials%3D%5Cfrac%7B3.6%5C%20minutes%7D%7B0.6%5C%20minutes%7D%5C%5C%5C%5Ccommercials%3D6)
b. The other commercial break has the same lenght that the other one (3.6 minutes), but the commercials are half as long; this means that each commercial takes 0.3 minutes.
Then, you need to divide 3.6 minutes by 0.3 minutes in order to calculate the number of commercials that will be played during this break:
![commercials=\frac{3.6\ minutes}{0.3\ minutes}\\\\commercials=12](https://tex.z-dn.net/?f=commercials%3D%5Cfrac%7B3.6%5C%20minutes%7D%7B0.3%5C%20minutes%7D%5C%5C%5C%5Ccommercials%3D12)
Answer: 6 1/15 inch
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
- <em>Yuma: 2 2/3 inch of rain
</em>
- <em>Las Vegas: 4 1/5 inch of rain
</em>
So, to obtain the number of the two cities combined we simply have to add both values.
Mathematically speaking
2 2/3 + 4 1/15 = 2 10/15 + 4 1/15 = 6 1/15 inch
The 2 cities combined get an average of 6 1/15 inch of rain each year.
Feel free to ask for more if needed or if you did not understand something.
Answer:
89.5
Step-by-step explanation:
Answer:
7/10
Step-by-step explanation:
1-3/10 would be the same as 10-3.
So 10-3 is 7.