Answer:
Option 3
Step-by-step explanation:
Option 1:
Each month thereafter the number of chickens is 2 times the number in the month before.
This is not the case. It is easy to note because it has no mention of the 5 the function has as independent term. So discard it.
Option 2:
Nina earns $2.00 for each Enjoy the City book she sells. Each time she sells a book she also gets a five-dollar tip.
If X is the books sold, the $2 per book fits the equation, but as the $5 also varies with the books sold, this option does not fit. The 5 term must be fixed, not varying with X.
Option 3:
The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour.
This is correct!
X is the hours from 8:00. The day begins with 5dg and then increases by 2dg every hour. In te following hours there will be:
9:00 - 2+5=7
10:00 - 4+5=9
11:00 - 6+5=11
12:00 - 7+5=13
And so on!
Answer:
Equation : y=2x+5
A) There are initially 5 chickens on the farm. Each month thereafter the number of chickens is 2 times the number in the month before.
Since Every time the the number of chickens is 2 times the number in the month before. So, it is not the case
B)Nina earns $2.00 for each Enjoy the City book she sells. Each time she sells a book she also gets a five-dollar tip.
Let x be the number of books
She earns per book = 2
She earns by selling x books = 2x
we are given that Each time she sells a book she also gets a five-dollar tip.
So, Total cost of selling x books = 2x+5
So, This scenario models the equation y=2x+5
C)The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour.
Initial temperature = 5°C
Change in temp per hour = 2°C
Change in temp in x hours = 2x
So, Temperature after x hours - 2x+5
So, This scenario models the equation y=2x+5
