Answer:
4x - 20
Step-by-step explanation:
Combine like terms (those with the same amount of variables:
x + x + x + x = 4x
4x - 20 => Note: You cannot combine these two terms, because they do not have the same amount of variables (one having one variable (x), the other being a constant (no variable) ).
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Answer:
220
Step-by-step explanation:
Divide the numbers
Step-by-step explanation:
1. 1/4(x + 12)=2 - first isolate X'
- 12 -12
2. 1/4(x) = -10 - 1/4 since its a fraction, you'll have to subtract not divide
-1/4 - 1/4
3. x = -10.25
Andre did the first step correctly, but on the second step he just divided 1.4 by -10, instead of subtract 1/4 from both sides.
Answer:
The linear function is equal to
Step-by-step explanation:
Let
y -----> the number of tickets remaining at a given time
x -----> the time in days
we know that
The linear equation in slope intercept form is equal to
where
m is the slope and b is the y-intercept (original number of tickets)
In this problem we have
----> is negative because is decreasing
substitute
Convert to function notation