Answer: the number of minutes of long distance call that one can make is lesser than or equal to 12 minutes.
Step-by-step explanation:
Let x represent the number of minutes of long distance call that one makes.
The first three minutes of a call cost $2.10. After that, each additional minute or portion of a minute of that call cost $0.45. This means that if x minutes of long distance call is made, the total cost would be
2.10 + 0.45(x - 3)
Therefore, the inequality to find the number of minutes one can call long distance for $6.15 is expressed as
2.10 + 0.45(x - 3) ≤ 6.15
2.10 + 0.45x - 1.35 ≤ 6.15
0.75 + 0.45x ≤ 6.15
0.45x ≤ 6.15 - 0.75
0.45x ≤ 5.4
x ≤ 5.4/0.45
x ≤ 12
There is a mathematical formula which relates these quantities, given by:
![A= \frac{P\times a}{2}](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7BP%5Ctimes%20a%7D%7B2%7D)
Using this, we have:
<span>
![A= \frac{P\times a}{2} \\ 484= \frac{(10n)\times 12.1 }{2} \\ \boxed {n=8}](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7BP%5Ctimes%20a%7D%7B2%7D%20%5C%5C%20484%3D%20%5Cfrac%7B%2810n%29%5Ctimes%2012.1%20%7D%7B2%7D%20%5C%5C%20%5Cboxed%20%7Bn%3D8%7D)
</span>
Answer:
you can eat this noddles then you will got answer
Answer:
The answer is
![y = 3x + 5](https://tex.z-dn.net/?f=y%20%3D%203x%20%2B%205)
Step-by-step explanation:
❃Incase you forgot what the linear equation formula is ↶
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
❃Since we already have the slope, we don't need to solve for that.
➊ First: We are going to find the y-intercept.
![y = mx + b \\ 2 = 3( - 1) + b \\ 2 = - 3 + b \\ \frac{ + 3 = + 3 \: \: \: \: \: }{5 = b}](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b%20%5C%5C%202%20%3D%20%203%28%20-%201%29%20%2B%20b%20%5C%5C%202%20%3D%20-%203%20%2B%20b%20%5C%5C%20%5Cfrac%7B%20%2B%203%20%3D%20%2B%203%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%5C%3A%20%7D%7B5%20%3D%20b%7D)
➋Second: Plug in.
![y = 3x + 5](https://tex.z-dn.net/?f=y%20%3D%203x%20%2B%205)
Answer:
I don't think this question can be answered without more info