Answer:
Plan A:
C = $80
C = cost
Plan B:
C = 0.15t + 20
C = cost; t = amount of text messages
Step-by-step explanation:
Let C = cost.
Let t = amount of text messages.
<u>Plan A:</u>
C = $80
<u>Plan B:</u>
C = 0.15t + 20
If the next question asks for you to solve when Plan B will be equal to Plan A, set the two equations equal to each other.
80 = 0.15t + 20
Isolate the variable, t. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First, subtract 20 from both sides.
80 (-20) = 0.15t + 20 (-20)
80 - 20 = 0.15t
60 = 0.15t
Divide 0.15 from both sides.
(60)/0.15 = (0.15t)/0.15
60/0.15 = t
t = 400
Those who use Plan B must send at least 400 text message to have the same price as Plan A.
~
Answer:
Viruses are 2 times of the bacteria.
Step-by-step explanation:
Given:
Number of viruses =
Number of bacteria = ![1\times 10^9](https://tex.z-dn.net/?f=1%5Ctimes%2010%5E9)
We have to found how many times viruses are greater than the bacteria.
To find how many times,we can divide both the numbers to compare its values.
Lets
Numerator = Number of viruses
Denominator = Number of bacteria
Dividing both we have,
⇒ ![\frac{2\times 10^9}{1\times 10^9}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Ctimes%2010%5E9%7D%7B1%5Ctimes%2010%5E9%7D)
⇒
...![\frac{ab^x}{cb^y}=\frac{ab^x^-^y}{c}](https://tex.z-dn.net/?f=%5Cfrac%7Bab%5Ex%7D%7Bcb%5Ey%7D%3D%5Cfrac%7Bab%5Ex%5E-%5Ey%7D%7Bc%7D)
⇒
...![a^0=1](https://tex.z-dn.net/?f=a%5E0%3D1)
⇒ ![2](https://tex.z-dn.net/?f=2)
So the viruses are 2 times of the bacteria.
The word of God has a profound way of encouraging its readers to be strong and courageous in the midst of tumultuous circumstances. These inspirational quotes are a great starting point for morning prayers and hope-filled conversations. Use them as an ever-present reminder all things are possible with God, and His mercies are new every morning.
(-inf, inf) f(x) = g(x) . . . 2x = 2x . . .x can go to negative infinity to positive infinity