Answer:
x=-1
Step-by-step explanation:
-8x+32=40
-8x=8
x=-1
Answer: 1/7
Step-by-step explanation: Seven possibilities and one outcome so it is 1/7
Answer:
$36.25
Step-by-step explanation:
To enter the park, Amanda pays 25 dollars.
+$25
It costs 1.25 for every ride that Amanda goes on.
Since we don't know the number of rides Amanda goes on, we will add a variable to represent the number of rides.
1.25x
Then, the passage says that Amanda goes on 9 rides. So, substitute 9 for x.
Equation: 25+1.25(9)
Then solve:
$36.25
There are infinitely many solutions.
Algebraically, we can eliminate
and try to solve for
:

Then



which is the equation of an ellipse.
The answer is 4.5, I hope this helps.