The answer is C
Explanation: each ride costs $1.25 but they don’t give a number of rides therefore the number of rides is unknown and represents X. 64 was the total value of his money before the rides. With each ride you add -1.25 to 64, which gives diminishing returns for each ride.
Hope this helps !
Answer:
The degree of the polynomial is 3
Step-by-step explanation:
Given:
![a^3+3a^2-5a](https://tex.z-dn.net/?f=a%5E3%2B3a%5E2-5a)
To Find:
The degree of the polynomial= ?
Solution:
The degree of the polynomial is the value of the greatest exponent of any expression (except the constant ) in the polynomial. To find the degree all that you have to do is find the largest exponent in the polynomial
Here in the given polynomial
![a^3+3a^2- 5a](https://tex.z-dn.net/?f=a%5E3%2B3a%5E2-%205a)
The terms are
![a^3](https://tex.z-dn.net/?f=a%5E3)
![3a^2](https://tex.z-dn.net/?f=3a%5E2)
![5a](https://tex.z-dn.net/?f=5a)
The term
has the largest exponent of 3
Note: The degree of the polynomial does not depend on coefficients of the terms
The answer will be Apples
Answer:
16
Step-by-step explanation:
consider X = Damon's age
3x + 8 = 2x
x = 8
so Damon will be 16 in 8 years ( 8+8)
Answer:
Tasha should mix 25 liters of 20% solution and 50 liters of 50%.
Step-by-step explanation:
Let x liters be the amount of 20% solution and y liters be the amount of 50% solution Tasha takes.
1. Tasha needs 75 liters of a 40% solution of alcohol. Then
x + y = 75
2. There are
liters of alcohol in x l of 20% solution
liters of alcohol in 50% solution
liters of alcohol in 75 liters of 40% solution
In total,
of alcohol that is 30 l, so
0.2x + 0.5y = 30
3. Solve the system of two equations:
![\left\{\begin{array}{l}x+y=75\\ \\0.2x+0.5y=30\end{array}\right.](https://tex.z-dn.net/?f=%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bl%7Dx%2By%3D75%5C%5C%20%5C%5C0.2x%2B0.5y%3D30%5Cend%7Barray%7D%5Cright.)
From the first equation:
![x=75-y](https://tex.z-dn.net/?f=x%3D75-y)
Substitute it into the second equation
![0.2(75-y)+0.5y=30\\ \\15-0.2y+0.5y=30\\ \\0.3y=30-15\\ \\0.3y=15\\ \\3y=150\\ \\y=50\\ \\x=75-50=25](https://tex.z-dn.net/?f=0.2%2875-y%29%2B0.5y%3D30%5C%5C%20%5C%5C15-0.2y%2B0.5y%3D30%5C%5C%20%5C%5C0.3y%3D30-15%5C%5C%20%5C%5C0.3y%3D15%5C%5C%20%5C%5C3y%3D150%5C%5C%20%5C%5Cy%3D50%5C%5C%20%5C%5Cx%3D75-50%3D25)
Tasha should mix 25 liters of 20% solution and 50 liters of 50%.