Answer:
Jose's solution is not correct, the auditorium has 
rows
Step-by-step explanation:
we have
where
f(x)------> is the total number of seats in the auditorium
x----> represents the number of rows
How many rows are there in the auditorium if it has a total of 416 seats?
so
Find the value of x for f(x)=416 seats
substitute the value of f(x) in the equation
Using a graphing calculator
The values of x are
The solution is
x=16 rows because the number of rows can not be a negative number
Answer:
Sample Response
Step-by-step explanation:
He is incorrect because if you substitute x for 37 you will get the equation 8×37+200. 8×37=296 +200= 496. Since it is not greater or equal to 500 the inequality is not true.
Here is a substitution problem. By saying c is 4, we can replace anywhere we see c with the number 4.
c = 4
4c - 7.8
= 4(4) - 7.8
= 16 - 7.8
= 8.2
Hope this helps! :)
Answer
y = 2x
Explanation
The first thing is to find the gradient of the line.
Gradient = Δy/Δx
= (4--2)/(2--1)
= 6/3
= 2
Now a general point (x, y) and one of thegiven points.
(y - 4)/(x - 2) = 2
y - 4 = 2(x - 2)
y = 2x - 4 + 4
y = 2x + 0
y = 2x
Answer:
9.5 ft
Step-by-step explanation:
12.4 times 2 is 24.8 feet (this is the two lengths combined)
since the garden is 43.8 feet, subtract. 43.8 - 24.8 = 19
lastly, 19 divided by 2 is 9.5.
