Answer:
the age of the person that entered the room is 37
Step-by-step explanation:


x=126
12+21+25+18+13=89
126-89=37
The linear function with values of f(-1)=8 and f(5)=6 is f(x) =
.
What is linear function?
A straight line on the graph has the equation or formula y = f(x) = px + q is linear function .One independent and one dependent variables are present. X and Y are the independent and dependent variables, respectively. P is the y-intercept or constant term, and it also represents the value of the dependent variable. A straight line on the coordinate plane is represented by a linear function.
Here the given values are f(-1)=8 and f(5)=6.
We know that f(x)=y , Then the points are (-1,8) and (5,6).
Using slope formula ,
=> slope m= 
=> slope m = -2/6=-1/3
Now using slope formula,
=> 
=>y-8=-1/3(x+1)
=>3y-24=-x-1
=> 3y=-x+23
=> y = 
Hence the linear function is f(x) =
.
To learn more about linear function refer the below link
brainly.com/question/28899900
#SPJ9
Answer:
Converting velocity into m/s
72x5/18=20 m/s²
Distance = Velocity *Time
20*5=100m
Step-by-step explanation:
hope it's helpful
Answer:
He should work
hours in overtime.
Step-by-step explanation:
Let x represents the number of hours of regular time and y represents the number of hours of overtime,
Since, earnings are $24 per hour for regular time and $36 per hour for overtime,
Thus, total earning = (24x + 36y) dollars,
Here, x = 40 hours and total earning = $ 1200,
By substituting the values,
1200 = 24(40) + 36y
1200 = 960 + 36y
240 = 36y
⇒ 
Hence, he should work
hours in overtime.